电气自动化技术专业英语阅读教程（第三版）

大连理工大学出版社电气自动化技术专业英语阅读教程（第三版）新世纪高职高专教材编审委员会组编主编方惠忠主审刘培骧点击添加文本点击添加文本点击添加文本点击添加文本UnitOne

AnalogandDigitalCircuitsTextA

PackingAidTextBDigitalStep-kmCounterCircuitSchematicDescriptionTextCConnectingtheDots点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitDevicepurpose

Thiscircuitisdesignedasanaidinparkingthecarnearthegaragewallwhenbackingup.

LEDD7illuminateswhenbumper-walldistanceisabout20cm,D7+D6illuminateatabout10cm,andD7+D6+D5atabout6cm.Inthismanneryouarealertedwhenapproachingtooclosetothewall.Alldistancesmentionedbeforecanvary,dependingoninfra-redtransmittingandreceivingLEDsusedandaremostlyaffectedbythecolorofthereflectingsurface.

Blacksurfaceslowergreatlythedevice'ssensitivity.

Obviously,youcanusethiscircuitinotherapplicationslikeliquidleveldetection,proximity

devicesetc.CircuitdiagramThreeLEDssignalbumper-barrierdistanceInfra-redoperation,indooruse该电路的设计是用于帮助倒车时将车停在车库墙附近。当汽车保险杠与墙面距离约20cm时，发光二极管D7发光；约10cm时，D7和D6同时发光；约6cm时，D7、D6和D5同时发光。这样，你离墙面太近时，就会得到警示。这取决于所使用的发射和接收红外线的发光二极管，并受到反射物表面颜色的影响。所有上述距离都可能会发生变化，显然，该电路还可以应用于液位检测、接近开关等方面。点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitCircuitdiagram点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitPartsR1:10kΩ,1/4WResistor.R2,R5,R6,R9:1kΩ,1/4WResistors.R3:33Ω,1/4WResistor.R4,R11:1MΩ,1/4WResistors.R7:4.7kΩ,1/4WResistor.R8:1.5kΩ,1/4WResistor.R10,R12~R14:1kΩ,1/4WResistors.C1,C4:1μF,63VElectrolyticorPolyesterCapacitors.C2:47pF,63VCeramicCapacitor.C3,C5:100μF,25VElectrolyticCapacitors.D1:Infra-redLED.D2:Infra-redPhotoDiode(seeNotes).D3,D4:1N4148,75V,150mADiodes.D5~D7:LEDs(Anycolorandsize).IC1:555TimerIC.IC2:LM324LowPowerQuadOp-amp.IC3:7812,12V,1APositivevoltageregulatorIC.点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitCircuitoperation

IC1formsanoscillatordrivingtheinfra-redLEDbymeansof0.8ms,pulsesat120Hzfrequencyandabout300mApeakcurrent.D1&D2areplacedfacingthecaronthesameline,acoupleofcentimetersapart,onashortbreadboardstripfastenedtothewall.D2picksuptheinfra-redbeamgeneratedbyD1andreflectedbythesurfaceplacedinfrontofit.ThesignalisamplifiedbyIC2AandpeakdetectedbyD4&C4.DiodeD3,withR5&R6,compensatefortheforwarddiodedropofD4.ADCvoltageproportionaltothedistanceofthereflectingobjectandD1&D2feedtheinvertinginputsofthreevoltagecomparators.ThesecomparatorsswitchonandofftheLEDs,referringtovoltagesattheirnon-invertinginputssetbythevoltagedividerresistorchainR7~R10.点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitNotes

Powersupplymustberegulated(hencetheuseofIC3)forprecisereferencevoltages.Thecircuitcanbefedbyacommercialwallplug-inpowersupply,havingaDCoutputvoltageintherange12~24V.

Currentdrawing:LEDsoff40mA;allLEDson60mA@12VDCsupply.

Theinfra-redphotodiodeD2,shouldbeofthetypeincorporatinganopticalsunlightfilter:thesecomponentsappearinblackplasticcases.SomeofthemresembleTO92transistors:inthiscase,pleasenotethatthesensitivesurfaceisthecurved,nottheflatone.

AvoidsunorartificiallighthittingdirectlyD1&D2.Ifyourcarhasblackbumpers,youcanline-uptheinfra-reddiodeswiththe(mostlywhite)licenseornumberplate.该电路可由市电供电，输出12~24V的直流电。电流调节器：低于40mA，发光二极管熄灭；所有发光二极管由12V，60mA直流供电点亮。滤光器的类型：这些元件由黑色塑料封装。红外发光二极管D2要选用配有光学阳光其中一部分酷似TO92晶体管：这时，请注意感光面是弯曲的，而不是平的。你就可以把发光二极管与（一般是白色的）车牌或号牌排成一行。如果你汽车的保险杠是黑色的，点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-Acaseofanalogcircuit

It'swisertoplaceallthecircuitryneartheinfra-redLEDsinasmallbox.

The3signalingLEDscanbeplacedfarfromthemainboxataheightmakingthemwellvisiblebythecardriver.

ThebestsetupisobtainedbringingD2nearertoD1(withoutareflectingobject)untilD5illuminates;thenmovingitabituntilD5isclearlyoff.UsuallyD1-D2optimumdistanceliesintherange1.5~3cm.

IfyouareneedingasimplercircuitofthiskinddrivingaLEDorarelay,clickInfra-redLevel.最好将所有电路都放在接近发光二极管的小盒子里。3个发光二极管信号灯可以放在远离主箱的位置，并放置在一定高度上，确保司机能够看到。点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms1LEDabbr.lightemittingdiode,发光二极管2bumper-barrierdistance保险杠与障碍物的距离3signaldistance信号间距4infra-red[ˌɪnfrəˈred]adj.红外线的5operation[ˌɒpəˈreɪʃn]n.操作；运行6indoor[ˈɪndɔ:]adj.室内的，户内的7circuitdiagram电路图，线路图8resistor[rɪˈzɪstə]n.电阻器9electrolytic[ɪˌlektrəˈlɪtɪk]adj.电解的；由电解产生的10polyester[ˌpɒliˈestə]n.聚酯；涤纶11ceramiccapacitor陶瓷电容器12photodiode光电二极管，光敏二极管点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms13timer[ˈtaɪmə]n.定时器；计时器；跑表14quad[kwɔd]n.四倍15op-amp[ˈɒpˈæmp]n.运算放大器16positivevoltageregulator正电压稳压器17device[dɪˈvaɪs]n.装置，设备18purpose[ˈpɜ:pəs]n.目的；作用；功能19aid[eɪd]n.帮助；助手；辅助设备20garage[ˈɡærɑ:ʒ]n.车库；汽车修理厂；飞机库21backingup倒车22illuminate[ɪˈlu:mɪneɪt]vt.&vi.照亮，照明；发光23inthismanner如此，照这样点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms24alert[əˈlɜ:t]adj.警觉的，警惕的，注意的vt.向……报警25approach[əˈprəʊtʃ]vt.&vi.接近，走近，靠近。现在分词：approaching26mention[ˈmenʃn]vt.提到，说起n.提及27vary[ˈveəri]vi.变化；不同vt.使不同；使多样化28transmit[trænzˈmɪt]vt.&vi.发射；传导；传（热、声、光等）；发送信号29reflectingsurface反光表面，反射面30sensitivity[ˌsensəˈtɪvəti]n.敏感，感受性；（仪器等的）灵敏性31liquidlevel液面，液位32detection[dɪˈtekʃn]n.侦查；察觉；检测点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms33proximity[prɒkˈsɪməti]n.接近，邻近；近距离34oscillator[ˈɒsɪleɪtə]n.振荡器；振子35drive[draɪv]vt.&vi.驱使。现在分词：driving36bymeansof用，依靠；借助于37pulse[pʌls]n.脉搏；[无线电]（电磁波等）脉动vt.[电子学]施以脉冲；[无线电]脉冲地调节（电磁波）38frequency[ˈfri:kwənsi]n.[数][物]频率，次数；频率分布；频繁性39peakcurrent峰电流，峰值电流40centimeter[ˈsentɪˌmi:tə]n.厘米41apart[əˈpɑ:t]adv.相隔，相距；分开42breadboard[ˈbredbɔ:d]电路实验板43strip[strɪp]n.长条，条板点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms44fasten[ˈfɑ:sn]vt.&vi.使固定；扣紧45infra-redbeam红外光束46generate[ˈdʒenəreɪt]vt.形成，造成；发电。过去分词：generated47surface[ˈsɜ:fɪs]n.表面；外观，外表48amplify[ˈæmplɪfaɪ]vt.&vi.放大，扩大；增强；详述49detect[dɪˈtekt]vt.查明，发现；洞察；侦察，侦查；[电子学]检波50compensatefor赔偿，补偿损失51forwarddrop正向电压降52proportional[prəˈpɔ:ʃənl]adj.比例的，成比例的53reflectingobject反射物体54invert[ɪnˈvɜ:t]v.使倒置，使反转。现在分词：inverting点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms55input[ˈɪnpʊt]n.输入；输入电路；[电]输入端；输入的数据vt.把……输入电脑56comparator[ˈkɒmpəreɪtə]n.比较仪，比较器；比测器；比长仪57switchon打开，开动，启动；接入58non-inverting[ˈnɒnɪnˈvɜ:tɪŋ]adj.非反相的59voltagedivider分压器60resistorchain电阻排61powersupplyn.电源；供电62regulate[ˈreɡjuleɪt]vt.调节，调整；校准；控制，管理63precise[prɪˈsais]adj.清晰的；精确的；正规的；精密的64befedby由……供电65commercialpowersupply市电供电点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms66output[ˈaʊtpʊt]n.产量；输出；作品；[计]输出信号vt.输出67intherange在范围内68currentdrawing电流驱动69incorporate[ɪnˈkɔ:pəreɪt]vt.&vi.包含；配备；使混合；使具体化70optical[ˈɒptɪkl]adj.视觉的，视力的；眼睛的；光学的71filter[ˈfɪltə]n.滤波器；滤光器；滤色镜；[化]过滤器72resemble[rɪˈzembl]vt.与……相像，类似于73transistor[trænˈzɪstə]n.晶体管；晶体管收音机，半导体收音机74curved[kɜ:vd]adj.弧形的，曲线的75artificiallight人造光，灯光76hit[hɪt]vt.&vi.打，打击；碰撞；(网站的)点击,浏览,访问；本文：灯光的照射点击添加文本点击添加文本点击添加文本点击添加文本PackingAidTextA-AcaseofanalogcircuitWordsandterms77lineup排成行，排成直线78numberplate（车辆的）牌照，号码牌；（住宅的）门牌79height[haɪt]n.高度，海拔；高地；身高；绝顶，顶点80visible[ˈvɪzəbl]adj.看得见的；明显的，显然的81optimum[ˈɒptɪməm]adj.最适宜的82liein在于；位于83relay[ˈri:leɪ]n.继电器点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextB

Thiscircuitmeasuresthedistancecoveredduringawalk.Hardwareislocatedinasmallboxslippedinpants'pocketandthedisplayisconceivedinthefollowingmanner:theleftmostdisplayD2(themostsignificantdigit)shows0to9km.Anditsdotisalwaysontoseparatekmfromhm.

TherightmostdisplayD1(theleastsignificantdigit)showshundredsmetersanditsdotilluminatesafterevery50metersofwalking.

Abeeper(excludable),signalseachcountunit,occurringeverytwosteps.Anormalstepis

calculatedtospanaround78centimeters,thustheLEDsignaling50metersilluminatesafter64steps(or32operationsofthemercuryswitch),andthedisplayindicates100metersafter128stepsandsoon.显示方案设计如下：最左边的显示D2(最高有效位)表示0~9km，保留其小数点以区分千米和百米。硬件放在一个可塞入裤子口袋的小盒子内，小数点在每步行50米后显示出来。最右边的显示D1(最低有效位)表示几百米，点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextB

Thiscircuitmeasuresthedistancecoveredduringawalk.Hardwareislocatedinasmallboxslippedinpants'pocketandthedisplayisconceivedinthefollowingmanner:theleftmostdisplayD2(themostsignificantdigit)shows0to9km.Anditsdotisalwaysontoseparatekmfromhm.

TherightmostdisplayD1(theleastsignificantdigit)showshundredsmetersanditsdotilluminatesafterevery50metersofwalking.

Abeeper(excludable),signalseachcountunit,occurringeverytwosteps.Anormalstepis

calculatedtospanaround78centimeters,thustheLEDsignaling50metersilluminatesafter64steps(or32operationsofthemercuryswitch),andthedisplayindicates100metersafter128stepsandsoon.显示方案设计如下：最左边的显示D2(最高有效位)表示0~9km，保留其小数点以区分千米和百米。硬件放在一个可塞入裤子口袋的小盒子内，小数点在每步行50米后显示出来。最右边的显示D1(最低有效位)表示几百米，显示100m，以此类推。一般人走一步为78cm左右，因此发光二极管在64步（或水银开关动作32次）之后显示50m，在128步之后点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextB

Forlowbatteryconsumption,thedisplayilluminatesonlyonrequest,pushingonP2.Accidentalresetofthecounterisavoidedbecausetoresetthecircuitbothpushbuttonsmustbeoperatedtogether.Obviously,thisisnotaprecisionmeter,butitsapproximationdegreeisfoundgoodforthiskindofdevice.

Inanycase,themostcriticalthingtodoisthecorrectplacementofthemercuryswitchinsideoftheboxandthesettingofitsslopingdegree.最重要的是将水银开关正确放置在这个盒子里，并设置好它的倾斜度。无论如何，却很有用。若要重启电路，则需要同时按下两个按钮，以防误动。显然，这不是一种精密仪表，但它的近似度对这类仪器点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBCircuitdiagram点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBPartsR1:22kΩ1/4WResistor.R2:2.2MΩ1/4WResistor.R3:22kΩ1/4WResistor.R4:1MΩ1/4WResistor.R5:4.7kΩ1/4WResistor.R6:47Ω1/4WResistor.R7:4.7kΩ1/4WResistor.R8:4.7kΩ1/4WResistor.R9:1kΩ1/4WResistor.C1:47nF,63VPolyesterCapacitor.C2:100nF,63VPolyesterCapacitor.C3:10nF,63VPolyesterCapacitor.C4:10μF,25VElectrolyticCapacitor.D1:Common-cathode7-segmentLEDmini-display(Hundredsmeters).D2:Common-cathode7-segmentLEDmini-display(Kilometers).点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBPartsQ1:BC327,45V,800mAPNPTransistors.Q2:BC327,45V,800mAPNPTransistors.P1:SPSTPushbutton(Reset).P2:SPSTPushbutton(Display).IC1:4093Quad2inputSchmittNANDGateIC.IC2:40247stageripplecounterIC.IC3:4026Decadecounterwithdecoded7-segmentdisplayoutputsIC.IC4:4026Decadecounterwithdecoded7-segmentdisplayoutputsIC.SW1:SPSTMercurySwitch,calledalsoTiltSwitch.SW2:SPSTSliderSwitch(Soundon-off).SW3:SPSTSliderSwitch(Poweron-off).BZ:Piezosounder.B1:3VBattery(2AA1.5VCellsinseries).点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBCircuitoperation

IC1A&IC1Bformamonostablemultivibratorprovidingsomedegreeoffreedomfromexcessivebouncingofthemercuryswitch.ThereforeacleansquarepulseentersIC2thatdividesby64.Q2drivestheLEDdot-segmentofD1every32pulsescountedbyIC2.EitherIC3orIC4dividesby10anddrivesthedisplays.P1resetsthecountersandP2enablesthedisplays.IC1Cgeneratesanaudiofrequencysquarewavethatisenabledforashorttimeateachmonostablecount.Q1drivesthepiezosounderandSW2allowsdisablingthebeep.IC1A和IC1B组成了一个单稳态多谐振荡器，在一定程度上避免了受水银开关频繁动作的影响。每有一次单稳计数，IC1C就能够在短时间内产生一次音频方波。点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBNotes

Experimentwithplacementandslopingdegreeofmercuryswitchinsidethebox:thisisverycritical.

Trytoobtainapulseeverytwowalkingsteps.Listeningtothebeeperisextremelyusefulduringsetup.

TrimR6valuetochangebeepersoundpower.

PushP1andP2toreset.

Thiscircuitisprimarilyintendedforwalkingpurposes.Forjogging,furthergreatcaremustbe

usedwithmercuryswitchplacementtoavoidundesiredcounts.

Whenthedisplayisdisabled,currentconsumptionisnegligible.ThereforeSW3canbeomitted.若用于慢跑，则应更加注意安放水银开关时的位置，防止无用计数。当显示屏关闭时，电流消耗很小，因此可以忽略SW3。点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms1digitalstep-kmcounter数字计步器2schematic[ski:ˈmætɪk]n.图表，（尤指）电路原理图3description[dɪˈskrɪpʃn]n.描述4measure[ˈmeʒə]vt.&vi.测量（大小，容量，尺寸等）5distance[ˈdɪstəns]n.距离，路程6covered[ˈkʌvəd]adj.包含着的；覆盖的7hardware[ˈhɑ:dweə]n.计算机硬件；五金器具；武器装备8locate[ləʊˈkeɪt]vt&vi.位于；确定……的位置；定位；定居9slip[slɪp]vi.滑，滑脱；本文：放入，放进10pantsˈpocket裤子口袋11display[dɪˈspleɪ]n.显示，展览，陈列；显示器vt.&vi.显示；陈列点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms12conceive[kənˈsi:v]vt.&vi.构思；想象，设想；本文：设计成13thefollowing如下；与asfollows同。注意：thefollowing中，the不能少14manner[ˈmænə]n.方式，方法；态度，举止；礼貌，规矩15leftmost[ˈleftməʊst]adj.最左边的16rightmost[ˈraɪtməʊst]adj.最右边的17significantdigit有效数（字）；themostsignificantdigit最高有效位；theleastsignificantdigit最低有效位18show[ʃəʊ]vt.&vi.给……看；显露出；上演；说明；显现19dot[ɒɔt]n.点，小圆点；本文：小数点20separate[ˈsepəret]vt.&vi.区分；（使）分离adj.单独的；分开的，分居的点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms21hundredsmeters几百米；hundreds：许多，大量，几百22beeper[ˈbi:pə]n.能发出哔哔声音的仪器，蜂鸣器23excludable[ɪksˈklʊdəbl]adj.可排他的；包括在外的；本文：可选装24signal[ˈsɪɡnəl]vt.向……发信号；vi.发信号n.信号，暗号；预兆，征象25occur[əˈkɜ:]vi.发生；出现；闪现26calculate[ˈkælkjuleɪt]vt.&vi.计算；估计；预测，推测27span[spæn]n.跨度，墩距vt.缚住或扎牢；跨越时间或空间28centimeter[ˈsentɪˌmi:tə]n.厘米29mercuryswitch水银开关30consumption[kənˈsʌmpʃn]n.消费；肺病；耗尽31push[ˈpʊʃ]vt.&vi.推，推动；按点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms32precisionmeter精密仪表33approximation[əˌprɒksɪˈmeɪʃn]n.接近；[数]近似值；近似额；粗略估计34goodfor对……有益，能担当；宜于35insideof（在时间或距离上）少于，在……之内36slope[sləʊp]n.斜坡；斜面；倾斜vi.倾斜；有斜度。现在分词：sloping37electrolyticcapacitor电解电容38common-cathode[ˌkɒmənˈkæθəʊd]n.共阴极39segment[ˈseɡmənt]n.部分，段落；环节；[计算机]（字符等的）分段40pushbutton[pʊʃˈbʌtn]n.按钮41reset[ˌri:ˈset]vt.重置；重排；重新安装vi.重置；清零点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms42Schmitt[ʃmit]adj.（双稳态电路等）施密特的[人名]施米特43NANDGate与非门44stage[steɪdʒ]n.阶段；位45ripplecounter纹波计数器46decadecounter十进制计数器47decode[ˌdi:ˈkəʊd]vt.译（码），解（码）；分析及译解电子信号48tiltswitch倾斜开关49slideswitch滑动开关50soundon-off声音开—关51poweron-off电源开—关52piezo[ˈpɪəzəʊ]n.压电；压电式点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms53cellsinseries电池串联54monostable[mɒnəˈsteɪbl]adj.单稳（态）的55multivibrator单稳态多谐振荡器56provide[prəˈvaɪd]vt.&vi.提供，供给，供应vt.规定；提供(+for)；装备。现在分词：providing57excessive[ɪkˈsesɪv]adj.过度的，极度的；过分的；过多的58bouncing[ˈbaʊnsɪŋ]adj.精力充沛的；精神饱满的；活泼的；频繁的59squarepulse矩形脉冲，方波脉冲60drive[draɪv]vt.&vi.驱动，驱使；驱赶，驱逐；驾车行驶点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms61either

[ˈaɪðə]pron.（两者之中）任何一个adj.（两者中）任一的；非此即彼的，两者择一的conj.（通常用于“either…or…”结构中）或者，要么62audiofrequency音频63squarewave方波，矩形波64experiment[ɪkˈsperɪmənt]experimentwithn.实验，试验；尝试vi.做实验，进行试验；尝试以……做实验65critical[ˈkrɪtɪkl]adj.重要的，决定性的；批评的，爱挑剔的；危险的，危急的66trim[trɪm]vt.调整67primarily[ˈpraɪˈmerəli]adv.主要地；根本上；本来，源自于点击添加文本点击添加文本点击添加文本点击添加文本DigitalStep-kmCounterCircuitSchematicDescriptionTextBWordsandterms68intend[ɪnˈtend]beintendforvt.意欲，计划；为特殊目的而设计；为特定用途而打算；意指或意味vi.怀有某种意图或目的希望……加入……；为……而准备69jogging[ˈdʒɒɡɪŋ]n.慢跑v.（使）慢走，慢跑(jog的现在分词)70further[ˈfɜ:ðə]adj.更进一步的，深一层的；更多的adv.进一步地；更远地71beusedwith与……一起使用72currentconsumption电流消耗73negligible[ˈneɡlɪdʒəbl]adj.可以忽略的；微不足道的；无足轻重的74omit[əˈmɪt]vt.省略；遗漏；删掉点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

IdroppedoutofReedCollegeafterthefirstsixmonths,butthenstayedaroundasadrop-inforanother18monthsorsobeforeIreallyquit.SowhydidIdropout?

ItstartedbeforeIwasborn.Mybiologicalmotherwasayoung,unwedgraduatestudent,andshedecidedtoputmeupforadoption.ShefeltverystronglythatIshouldbeadoptedbycollegegraduates,soeverythingwasallsetformetobeadoptedatbirthbyalawyerandhiswife.ExceptthatwhenIpoppedouttheydecidedatthelastminutethattheyreallywantedagirl.StatueofJobsatGraphisoftPark,Budapest所以我出生时，她已做好一切准备让一对律师夫妇收养我。只可惜，她强烈觉得应该让大学学历的人来收养我，当我出生的那一刻，那对律师夫妇却决定收养一个女孩。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

Somyparents,whowereonawaitinglist,gotacallinthemiddleofthenightasking,"We'vegotanunexpectedbabyboy;doyouwanthim？"Theysaid,"Ofcourse.“Mybiologicalmotherfoundoutlaterthatmymotherhadnevergraduatedfromcollegeandthatmyfatherhadnevergraduatedfromhighschool.Sherefusedtosignthefinaladoptionpapers.SheonlyrelentedafewmonthslaterwhenmyparentspromisedthatIwouldgotocollege.Thiswasthestartinmylife.

And17yearslaterIdidgotocollege.ButInaivelychoseacollegethatwasalmostasexpensiveasStanford,andallofmyworking-classparents'savingswerebeingspentonmycollegetuition.Aftersixmonths,Icouldn'tseethevalueinit.IhadnoideawhatIwantedtodowithmylifeandnoideahowcollegewasgoingtohelpmefigureitout.AndhereIwasspendingallofthemoneymyparentshadsavedfortheirentirelife.我不知道这辈子要干什么，也不知道大学能否帮助我找到答案。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

SoIdecidedtodropoutandtrustedthatitwouldallworkoutokay.Itwasprettyscaryatthetime,butlookingbackitwasoneofthebestdecisionsI'veevermade.TheminuteIdroppedoutIcouldstoptakingtherequiredclassesthatdidn'tinterestme,andbegindroppinginontheonesthatlookedfarmoreinteresting.

Itwasn'tallromantic.Ididn'thaveadormroom,soIsleptonthefloorinfriends'rooms.Ireturnedcokebottlesforthefivecentdepositstobuyfoodwith,andIwouldwalkthesevenmilesacrosstowneverySundaynighttogetonegoodmealaweekattheHareKrishnaTemple.Ilovedit.AndmuchofwhatIstumbledintobyfollowingmycuriosityandintuitionturnedouttobepricelesslateron.当时这个决定看来相当可怕，可是回过头来看，那是我做过的最好的决定之一。我靠回收可乐瓶的五分钱退费去买吃的，每个星期天晚上穿过镇子，走上七英里*路，去哈尔·克里什纳庙改善一下一周的伙食。我追寻着好奇与直觉而无意中涉足的事物，后来大多被证明都是无价之宝。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

Letmegiveyouoneexample:ReedCollegeatthattimeofferedperhapsthebestcalligraphyinstructioninthecountry.Throughoutthecampuseveryposter,everylabeloneverydrawer,wasbeautifullyhandcalligraphed.BecauseIhaddroppedoutanddidn'thavetotakethenormalclasses,Idecidedtotakeacalligraphyclasstolearnhowtodothis.Ilearnedaboutserifandsanseriftypefaces,aboutvaryingtheamountofspacebetweendifferentlettercombinations,aboutwhatmakesgreattypographygreat.Itwasbeautiful,historical,artisticallysubtleinawaythatsciencecan'tcapture,andIfounditfascinating.书法的美好、历史感与艺术的精妙是科学所无法企及的，我觉得那很迷人。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

Noneofthishadevenahopeofanypracticalapplicationinmylife.Buttenyearslater,whenweweredesigningthefirstMacintoshcomputer,itallcamebacktome.AndwedesigneditallintotheMac.Itwasthefirstcomputerwithbeautifultypography.IfIhadneverdroppedinonthatsinglecourseincollege,theMacwouldhaveneverhadmultipletypefacesorproportionallyspacedfonts.AndsinceWindowsjustcopiedtheMac,it'slikelythatnopersonalcomputerwouldhavethem.IfIhadneverdroppedout,Iwouldhaveneverdroppedinonthatcalligraphyclass,andpersonalcomputersmightnothavethewonderfultypographythattheydo.

OfcourseitwasimpossibletoconnectthedotslookingforwardwhenIwasincollege.Butitwasvery,veryclearlookingbackwards10yearslater.如果我没有旁听那样一门课，Mac可能就不会有多种多样的字体和间距合理的字型了。而且要不是Windows照搬了Mac，个人计算机可能就不会有这些了。假如我从未退学，我也就不会去上书法课，个人计算机也就可能不会有现在那些漂亮的排版了。当然，当我还在大学里的时候，我不可能预见地将生命中的点滴连起来。但是，十年之后再回头看，就是非常非常清楚的了。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextC

Again,youcan'tconnectthedotslookingforward;youcanonlyconnectthemlookingbackwards.Soyouhavetotrustthatthedotswillsomehowconnectinyourfuture.Youhavetotrustinsomething—yourgut,destiny,life,karma,whatever—becausebelievingthatthedotswillconnectdowntheroadwillgiveyoutheconfidencetofollowyourheart,evenwhenitleadsyouoffthewell-wornpath,andthatwillmakeallthedifferences.你得相信一些东西——你的直觉、命运、生活、因缘，什么都可以。因为相信这点点滴滴将连成一条路，给予你追随自我的信念，即使当它引导你离经叛道，也将使你的人生完全不同。点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextCWordsandterms1drop[drɒp]dropoutofdropinvt.&vi.放弃；停止；结束；退出不参与，退出投入；愿意参加；顺便拜访；降下2stayaround停留，逗留3quit[kwɪt]vt.离开；放弃，抛弃；停止，中断vi.停止；放弃斗争；辞职4biological[ˌbaɪəˈlɒdʒɪkl]adj.生物学的；生物的；有血亲关系的5graduatestudent研究生6putup提供食宿；直接行动7adoption[əˈdɒpʃn]n.采用；收养8atbirth刚出生9exceptthat除……之外；只可惜10popout出生11waitinglist等待名单点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextCWordsandterms12findout发现，查明，猜出13relent[rɪˈlent]vi&vt.动怜悯心；发慈悲心14naively[nɑˈi:vlɪ]adv.天真烂漫地，无邪地15tuition[tjuˈɪʃn]n.学费；教学，讲授16figureout算出17scary[ˈskeəri]adj.使人惊慌的；胆小的，容易受惊的；可怕的，吓人的18requiredclass必修课19romantic[rəʊˈmæntɪk]adj.浪漫的；谈情说爱的；想入非非的；浪漫主义的20deposit[dɪˈpɒzɪt]n.保证金，押金；储蓄，存款vt.&vi.储蓄；寄存；沉淀21HareKrishnaTemple（印度教的）哈尔·克里什纳庙点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextCWordsandterms22stumble[ˈstʌmbl]vi.跌跌撞撞地走，蹒跚；失足；偶然碰见n.绊脚，失足23curiosity[ˌkjʊəriˈɒsəti]n.好奇心24intuition[ˌɪntjuˈɪʃn]n.直觉；凭直觉感知的知识；直觉力25ReedCollege里德学院26calligraphy[kəˈlɪgrəfi]n.美术字（体）；书法，笔迹27poster[ˈpəʊstə]n.海报，招贴，公告；招贴画；张贴者28serifandsanseriftypefaces带短线和不带短线的印刷字体29subtle[ˈsʌtl]adj.微妙的；巧妙的；敏感的；狡猾的30capture[ˈkæptʃə]vt.俘获；夺取；夺得；引起（注意、想象、兴趣）n.捕获；占领；捕获物点击添加文本点击添加文本点击添加文本点击添加文本ConnectingtheDotsTextCWordsandterms31fascinating[ˈfæsɪneɪtɪŋ]adj.迷人的，有极大吸引力的；使人神魂颠倒的v.使……陶醉(fascinate的现在分词)32multiple[ˈmʌltɪpl]adj.多重的；多个的；多功能的n.[数]倍数33proportionally[prəˈpɔ:ʃənli]adv.按比例地，相配合地，适当地34font[fɒnt]n.字体；字形35gut[ɡʌt]n.勇气；内脏；肠adj.本能的，直觉的vt.取出……的内脏36destiny[ˈdestəni]n.命运；天命37karma[ˈkɑ:mə]n.[宗]（佛教和印度教的）业；因果报应，缘分38confidence[ˈkɒnfɪdəns]n.信心；信任39lead...off开始，带头40well-worn[ˈwelwˈɔ:n]adj.用旧了的；俗套的，平凡的大连理工大学出版社电气自动化技术专业英语阅读教程（第三版）新世纪高职高专教材编审委员会组编主编方惠忠主审刘培骧点击添加文本点击添加文本点击添加文本点击添加文本UnitTwo

SensorsandMeasurementTextA

BarbecueTextBMeasurement,Instrument&SensorsTextCDanielGabrielFahrenheit点击添加文本点击添加文本点击添加文本点击添加文本BarbecueTextA

Here,youwillfindbarbecuerecipesthatwillteachyouhowtocookcompetitionqualityBBQfromaprovenBBQcontestwinner.

ThebesttipIcangiveyoutodayisthis—whenyouarelookingforbarbecuerecipesontheweb,makesureitisaprovenrecipewithchampionshipquality.Afterall,youwanttocookthebestBBQofyourlife,right?CompetitionqualityBBQcouldbebetterthananythingyouhaveevertriedbefore.Ihavehad80yearsoldmen,whohavebeenbarbecuingalltheirlivesandtryingourbarbecuerecipesandtechnigues,andproclaimitbetterthananythingtheyhavehadtodate.您将在这里找到烧烤食谱，这些食谱将会教您从一个确实的烧烤大赛冠军那里，学到如何烹饪具有比赛质量的烤肉。我今天能给您最好的小窍门是——当您正在网上寻找烧烤食谱时，请确保这是一个已被证明是冠军品质的食谱。具有竞赛质量的烤肉会比您曾经尝试过的任何烤肉都好。我有一帮80岁的老家伙们，他们烧烤一生，尝试烧烤配方和技术，并表明到目前为止，这些配方和技术比曾拥有的任何配方和技术都好。点击添加文本点击添加文本点击添加文本点击添加文本BarbecueTextA

NEW!FreeBBQPocketGuide.Justclickheretodownloadyourfreecopy.Noemailsign-ups,opt-ins,oranything!

Aboveallelse,havefunandemailmeorsubmitaquestioninourBBQadviceblogifyouneedhelpwithaspecifictopic.YourBarbecueCoach,BillAnderson

P.S.ForanybodywhowantsafasttracktoBBQsuccess,wehaveawholesetofBarbecueInstructionVideosavailabletowatchonourweb.尤其是，假如有兴趣，并且您需要具体细节上的帮助，请发电子邮件或把问题提交到我们的烧烤建议博客去。对于任何想要获得烤肉成功捷径的人，我们的网站上有整套的烤肉指导录像可供观看。点击添加文本点击添加文本点击添加文本点击添加文本BarbecueTextA

Simple,CheapSingleProbeBBQThermometers

Ifyoudoanybarbecuingatall,youknowyouabsolutelyneedoneofthese.Ifyouarecompetingonthebarbecuecircuit,you'llneedafewofthese.TheNo.1mistakethatmostmastersmakeisnotknowingwhattheircookingchambertemperatureis"atthegrate"wherethemeatis.Thisdualproberemotethermometerallowsyoutodojustthat.Youcansitinyourreclinerandkeeptrackofyourinternal