太原理工大学矿业工程学院科技英语一-2常用概念

1,2常用概念的英译,2.1怎样译“有”2.2“用”的常见译法2.3“比较”的译法2.4举例子的表达方法,2.5分类的表达方法2.6有关度量的表达方法2.7因果关系的表达方法2.8表示程度的方法2.9引出结论的方法,2,2.1怎样译“有”,译法：haveincludebeofholdshowundergo,becomposedofbemadeupofconsistoftherebe句型containcomprise,3,Contain,Contain“包含有”、“含有”，指一个统一体包含有两个或多个部分或成分，但都不一定要完全列出所包含的部分或成分，作“有”、”含有”、“装有”、“盛有”等解。Thegascontainsabout5%ofcarbonmonoxide.Thetankcontains100gallonsofoil.Thealloycontains5%nickeland5%iron.,4,Consistof,Consistof“由组成”、“由构成”，可翻译成“有”。它有“某个整体是由其各个部件组成”的含义，只能用于主动语态。Theclassconsistsofthirtystudents.Smeltingconsistsofheatingtheironoreinthefurnaceandremovingtheslag.冶炼有两个步骤，在高炉内加热铁矿石和除去铁渣。,5,comprise,Comprise双面动词，主语和宾语从原则上说可以互换，而句子意思基本不变。表示“包括”。Mostfuelscomprisesamixtureofdifferentsubstances.Shortcoursearearrangedwhichlastforfivedaysandcompriselecture,demonstrationandvisittoahospital.,6,Becomposedof,Becomposedof“由组成”。Themachineiscomposedofseveraldifferentparts.Theseaismainlycomposedofwaterandsalt.Gunpowderiscomposedofsulfur,carbon,andpotassiumnitrate(硝酸钾).,7,include,Include“包括有”，“含有”，指有形或抽象的东西，其宾语可指全体，也可指部分。Thebookwasmoreusefulbecauseitincludedadetailedchronological(编年的)tableoftheevents.Thechieflivestockbreedsinclude12horsebreeds,14cattlebreeds,11sheepbreeds,15swine(猪)breeds,andyak(牦牛)andcamel.Themachineincludestwoplasticparts.,8,Hold,have,Hold“装有”、“盛有”、“容纳有”、“包含有”，常用于科技上。Sea-waterholdsmanysaltsinsolution.“溶有”Thebatteryholdsenoughelectricity.Have“有”。Arectanglehasfoursides.Thenewmethodshasthemostremarkableadvantages.,9,Bemadeupof，beof,Bemadeupof侧重于强调“人为的组成”。Cast-ironismadeupofaboutsixdifferentsubstances.Thecontentsofmouldingsand(造型砂)ismadeupofquartz,feldsparandmica(云母).Beof表示抽象概念的“有”。Enginesareoftwokinds,internal-combustionenginesandexternal-combustionengines.,10,Therebe句型，show,Therebe句型表示“有”，”存在”Thereare13speciesand1000varietiesormoreofChinesepearswhichhavebeenclassifiedintoorientalpear.Show“表现出”Thispapershowedagreatpracticality.这篇论文有极大的实用性。,11,Undergo等,Undergo“经历”，“发生”，有时可翻译成“有”Since1976,thisresearchcenterhasundergoneradicalchanges.其它Withallhisachievementheremainsmodestandprudent.他虽有很多成就，但还是谦虚谨慎。,12,翻译1、我们做实验所需要的设备就只有一瓶水、一根玻璃棒和一个橡皮塞而已。2、大气有多种气体。3、计算机里存有工厂每一变化的纪录以及全部有关信息。4、图中有两条曲线。,13,用应用，采用利用借用，开发利用,2.2“用”，“采用”的常见译法,use,harness,exploit,adopt,makeuseof,apply,utilize,employtamewithby,14,与“up”连用表示“用完”、“用光”；Makeuseofsb.表示“利用某人”,Largequantitiesofsteamareusedbymodernindustryinthegenerationofpower.Athermometerisusedtoreadtemperature.Gasolinehasbeenusedup.,Use表示“为某目的而使用某物”，常用于指“使用”、“消费”；,15,Employ“雇佣”、“使从事于”、“使用”，无“消费”之意。,使用固体燃料的新式锅炉通常太大，不适宜用人工添煤。,Modernboilerwhichemployssolidfuelsareusuallytoolargetobehandstocked.,Differentmethodsareusuallyemployedforweldingsteelsheetstogether.,16,Itwillbedifficulttoexploitthisinventioncommercially.Thegovernmentdecidedtoexploittherichnaturalresourcesinthenorth-westofourcountry.,Exploit“开发”、“利用”、“发挥”、“剥削”，多用于自然资源，如,exploitamine开矿exploitthefullpoweroftheengine开足马力,17,Utilize“利用”Thepropertiesofuraniumareutilizedinnuclearreactions.Thewaterwhichisnormallyusedasacoolantcannotusuallybeutilizedintheboiler,andcanthereforebere-circulated.Themodulationiswhattheradioreceiverutilizestoreproducetheradioprogramfromthebroadcastingstation.,18,Adopt“采用（手段、方法、技术等）”,Variousmeasurescanbeadoptedtocontroltheenvironmentpollution.Thefarmersadoptednewtechniquesinraisingsilkworms.Thedesignersadoptedamoreadvancedmaterialfortheairplaneengine.,19,Apply“施加”，“应用”,Thiskindofsalvecanbeappliedtowound.这种膏药可以用于敷伤口。Apressureof100b/in2isappliedtothepiston.在活塞上加100镑/平方英寸的压力。Theprinciplewassuccessfullyappliedtothedesignofrocket.,20,Harness,Harness利用原子能等难以使用，或带有危险性的东西Inthenearfuture,peoplewillbeabletoharnessthelimitlesssolarenergytoprovidepowerforus.Tame驯服意义上的利用Thiszoohastadedseveralwildelephantsrecently.,21,2.3“比较”的译法,1、表示“.得多”的句型,一些程度副词+比较级常见的程度副词有：much,verymuch,far,byfar,well,greatly,alot,agreatdeal,considerably,appreciably,significantly,substantially,incredibly,enormously,immeasurably,22,Thiscomputerismuchsmallerthanthatone.Mostcomputerfacilities（设施）continuetoprotecttheirphysicalmachinefarbetterthantheydotheirdata.Thiscircuitrequiresmanymorecomponents（元件）thanthecircuitshowonpage3.,23,2、表示“越来越”的句型,（1）最常用的方式对单音节词：采用“erander”对多音节词：采用“moreandmore”Electronicdevicesarebecomingsmallerandsmallerbutmoreandmoreomplicated.,24,（2）采用“ever+er”（主要用于单音节词）Computersareeversmaller.（3）采用“increasingly+原级”（主要用于多音节词）Computersaregettingincreasinglycomplicated.（4）“含有比较级的主句+表示时间的as从句随着”Theaccelerating（加速）forcebecomessmallerasthebodyapproachesthecenter.,25,3、“as形容词as数量”要译成“达到”,这块芯片(chip)薄（thin）达零点几毫米（millimeter）。Thischipisasthinasafewtenthsofamillimeter.Thischipisafewtenthsofamillimeterthin.地球离月球的距离远达24万英里。Thedistanceoftheearthfromthemoonisasgreatas240,000mi.,26,4、在“asas”句型中省去第2个“as部分”的情况（要根据上下文找到省略的成分）,Measuringanythingmeanscomparingitwithsomestandardtoseehowmanytimesasbigitis.可看成省去了“asthestandard”Howmanytimesasgreatisthekineticenergyifthevelocityisdoubled?Aforcewhichcausesabodytohavetwicetheacceleration（加速度）anotherforceproducesmustbetwiceasgreat.省略了asanotherforce,27,5、一种特殊的“asas”句型asmany(+名词A)asthereare+名词B译成“有多少个B就有多少个A”,Thereareasmanydesignsasthereareesigners.Theseenergybands（能带）areactuallycomposedofamultitudeof（许许多多）individual（单个）energylevels（能级）,asmanyasthereareatomsinthecrystal（晶体）.,28,6、句型“more名词Athan名词B”译成“与其说是B不如说是A”强调的是A,Thedesignandimplementation（实现）ofprogramminglanguageshasbeenmoreartthanscience.,29,7、“much和long”常起形容词和名词的双重作用,Theflip-flop（触发器）canstayhighforaslongas2min.时间长达,30,8、表示最高级的比较范围“在之中”时“of”和“in”的用法区别,in：后跟表示整体的集合名词单数Ofallphysicalpropertiesofmatter,electricalresistanceperhapsshowsthegreatestrangeofvalues.of：后跟可数名词复数,31,9、表示“越，就越”的句型,(1)通常的句型“the+比较级条件从句部分，the+比较级主句部分”倒装导线越细，你获得的电阻就越大。Thethinnerthewire,themoreresistanceyouwillobtain.该物体被提得越高，它具有的位能就越大。Thehigherthebodyislifted,themorepotentialenergyitpossesses.颜色越深，它吸收（absorb）的热就越多。Thedarkerthecolor(is),themoreheatitwillabsorb.,32,（2）特殊句型特点：“主句部分”在前，“从句部分”在后两部分之间无逗号分开“主句部分”的比较级前一般不用“the”例子：Skineffectisgreaterthehigherthefrequency.Theparticlesmovemorefreelythehigherthetemperature.,33,与比较,CompareComparewithComparetoContrast,用于比较相类似的或同种类中的东西，可指出其相似点，也可指出其不同点。,“把比作”,“与比较”“比得上”“可与相比”“与相比”,“对比”“对照”，用于对不同或不同种类的东西的对比，强调差别，即差别较大。,34,与比较,Comparedwith/toAscomparedwithIncomparisonwithContrastwithIncontrastwith,与比较,35,Compare例句,Experimentalresultsobtainedinthelaboratoryarecomparedwiththeoreticalcalculations.Howdoesthiscomparewiththat?这怎么能与那相比。Theoutputofthefactoryhasincreasedby20percentascomparedwithlastyear.,36,Contrast例句,Blueandyellowcontrastprettilyinadesign.Incontrasttothemechanismsofconductionandconvection,radiationmaytakeplaceinaperfectvacuum.,图样中，蓝色和黄色形成对照，显得很好看,与传导和对流的原理不同，辐射可以在完全真空中进行。,37,Contrast例句,Thecoldweathercontrastswithlastweeksheat.Howdoeslivinginashedcontrastwithlivinginanapartment?,本周的寒冷天气同上周的暖和天气形成对比。,住在窝棚里怎么能跟住在公寓里相比呢？,38,表示“相反”的表达式,WhileWhilstWhereasOntheonehandOntheotherhandIncontrastBycontrastOnthecontrary,ConverselyratherInsteadButHoweverStillYetInfactnevertheless,39,与一致,AgreewithAccordwithCoincidewithBeinagreementwithBeinaccordwithBeinconformitywithBeconsistentwith,40,对比句型,当两个式是需要对比时，常用表示对比的词或句型Insufficientairwillpreventcompletecombustionwhile/whereastoomuchairwillreducethetemperature.While/Whereasthetrafficdensityontheroadisveryhighduringthepeakhours,itisverylowatmiddayandduringthenight.,41,对比句,Askilledcraftsmancanearnhighwages.Ontheotherhandanunskilledworkerearnsverylittle.Ifyouweretosaythattheinsidesofthegasolineenginewehavejustbeendescribingarecomplicated,youwouldberight.Ithaspistons(活塞),connectingrods(连杆),valves(气阀),valvelifters(阀杆),andnumerousotherparts.Incontrast,theturbineengineisrathersimple.涡轮发动机,42,对比句,Arun-downwatchisstillawatchandcanberewound.Aoldwatch,bycontrast,becomessowornandunreliablethatiteventuallyisnotworthmending.停了的表，上了发条以后能继续使用。对比起来，一只旧表磨损的非常厉害，变得非常不可靠，最后连修也不值得了。,43,2.4举例子的表达方法,词：example,illustration,instance,case,sample,specimen,义：事例实例样例例证范例,标本,样品,样本,待试验物,2.4.1“实例”的表达方法,44,Example,标本，范例，例子，榜样，可指人或物Icouldgivealargenumberofexampleswithinmyownexperiencetoprovetothefulltruthofmycontention.Themostcommonexampleofamachineelementisagear.齿轮ThisbuildingisanexampleofearlyChinesearchitecture.,45,Instance,事例，实例，样品，场合，情况等ForinstanceForexampleTherearemanyinstanceaboutfriction.Inmanyinstances,theyprovideanswerspreviouslyunobtainableoreconomicallyunfeasible.在许多场合，他们提供的答案都是以前得不到的或是经济上不可行的。,举实例以说明,从许多事物中举出一个事物为例,46,Case,事例，案例，情形，所遇到的事实，病例，强调的主要是事实，有时可与instance互换，如inyourcaseinyourinstance.在你这种情形下,Incaseslikethefollowing，Thisisacivilcase.民事案件Recently,therehavebeenfourcasesoffire.四场火灾Acaseinpoint恰当的例子,47,Illustration,通过事例说明某一理论或原理，也有插图、图例、例证、说明,Hegaveanillustrationofwhathemeant.Thisillustrationgaveanadequatepictureoftheimportanceoffriction.,48,Sample、specimen、pattern,Sample特指足以表示物体性质的“样品”、“样例”Specimen“样品”、“标本”、“抽样”、“试样”Pattern“样块”、图样”、“式样”、“花样”Todetectgases,asampleofaircanbeanalyzedchemically.Hecollectedspecimensofallkindsofrocksandminerals.,49,Sample、specimen、pattern,Allthesampleweldsprovedtobestrongerthantheparentmetal.Determinethevolumeofyourspecimenbymeasuringtheappropriatedimensions.Thenewmethodoffersapotentiallysimplermeansofproducingthesmallmetalpatterns.,50,2.4.2举例方法,as,like,forexample,forinstance,suchas,suchasLanguagescomingfromLatin,suchasFrench,Italian,andSpanishhavesomecharactersincommon.或SuchlanguagescomingfromLatinasFrench,Italian,andSpanishhavesomecharactersincommon.,引出例子的词或词组：,51,举例子,Acupuncture(针灸)isonewayofcuringdiseasesuchasusedincuringmentaldisease.,52,2.5分类的表达方法,Therebe句型ThereareseveraltypesofsuchenginesBeof结构Enginesareoftwokinds/sorts,internalcombustionengineandexternalcombustionengine.主动语态Wecandividebooksintoseveralgroupsaccordingtotheircontents.被动语态Bookscanbeclassifiedaccordingtotheircontents.,53,对事物进行分类常用的句型,x,canbemaybeisare,classifieddividedgroupedcategorizedarrangedputplaced,classescategoriesgroupstypeskindsvarietiesspecies,into,accordingtodependingupon/ononthebasisof,54,对事物进行分类常用的句型,Theclassificationisbasedupon/on,typeskindssortsclassesvarietiesgroupscategories,Thereareseveral,OfNs.,Xbeofseveralkinds.,55,分类的例句,Themostcommonclassificationusedforpurposeofdiscussionofdesignproceduresisbaseduponthematerialscomprisingthestructure.Metalsfallintotwomaincategories,ferrous(basedoniron)andnon-ferrous.Bloodscellsareoftwotypes/kinds/sorts,whitebloodcell(WBC)andredbloodcell(RBC).,56,分类的例句,Enginesareoftwokinds/sorts,internalcombustionengineandexternalcombustionengine.Therearemany/severaltypesofengines.Wecanclassifybearingsaccordingtotheirpositionontheshaft.Bookscanbeclassifiedaccordingtotheircontents.Bookscanbedividedintoseveralclasses.,57,分类,注许多表示分类的句子可用主动语态也可用被动语态：,Bearingscanbedividedintoseveralcategoriesaccordingtotheirpositionontheshaft.Wecandividebooksintoseveralgroupsaccordingtotheircontents.,58,AClassificationofDrinks,Drinks,alcoholic,non-alcoholic,e.g.sprits,wine,beer,hot,cold,e.g.tea,coffee,cocoa,Aerated(充气的),Non-aerated,Sodawater,coca-cola,Milk,fruitjuices,59,小结,Everythinginnatureisconstantlychanging.Thesechangesareoftwokinds:physicalchangesandchemicalchanges.Aphysicalchangeoccurswhenasubstancechangesinformofstate;achemicalchangeoccurswhenasubstanceundergoeschemicaltransformations.,分类,定义对比,60,Therearetwogeneralkindsofsteel:carbonsteelandalloysteel.Carbonsteelcontainsonlyironandcarbon,whilealloysteelcontainsotherelementsaswell,suchasnickel,chromium(铬),tungsten(钨),etc.Thepropertiesofcarbonsteels,notablystrengthandhardness,dependontheamountofcarbontheycontain.Lowcarbonsteelisrelativelysoftandweak;mediumcarbonsteelisbothharderandstrongerthanlowcarbonsteel,whilehighcarbonsteelisthehardestandstrongest.Theadditionalelementofalloysteelmakeitnotonlystrongerandharderthancarbonsteel,butresistanttorustaswell.Forthelatterreason,alloysteelisalsocalledstainlesssteel.,定义对比,分类,说明,进一步分类并对比,说明对比,61,Inthesolidstateabodyhasadefinitevolumeandisalmostincompressible.Italsohasashapeindependentofthespaceinwhichitisplaced.Intheliquidstatematteralsopossessesadefinitevolumeandhaslittlecompressibility,butithasnodefiniteshapeandautomaticallytakestheshapeofanyvesselintowhichitisplaced.Inthegaseousstatematterhasneitherfixedvolumenorfixedshape.Aquantityofgasintroducedintoanyclosedspaceimmediatelyspreadsouttofillthatspace.,类1,类2,类3,62,2.6有关度量、测量的表达方法,2.6.1度量,2.6.2仪表，计，仪，器,2.6.3测量，确定，估计，推断,2.6.4值，读数,2.6.5工具，用具，仪表,63,2.6.1度量,Millimeter=mmCentimeter=cmKilometer=km,长度,宽度,高度,厚度,深度,角度,面积,longinlength,wideinwidth,highinheight,thickthickness,deepdepth,angle,area(square),64,度量,Milliliter=mlKiloliter=kl,Kilogram=KgKiloton=Kt,Kilowatt=kwKilowatt-hour=KWH千瓦时,Kilohertz=khz,Milliampere=mA,体积,容量,重量,速度,电流,电压,功率,frequency,volume(cubic),capacityhold,weightweigh,speed,current,voltage,频率,power,65,例,Thebeltis15mmwide.Thebeltis15mminwidth.Buildinghasaheightof150m.Thesteelplateis5mmthick.,Thewireistwometerslong.,这根线有两米长。,这根带子15毫米宽。,Thewireistwometersinlength.Thewirehasalengthoftwometers.Thelengthofthewireistwometers.,66,Thesteelplatemeasures3by2meters.,Theoiltankistengallonsincapacity.,Thevolumeoftheironblockis12cubiccentimeters.,Thesteelplateis6squaremetersinarea.,这条河有三米深。,这块钢板面积为6平方米。,这块钢板是3米2米的。,这块铁的体积是12立方厘米。,Thedepthoftheriveristhreemeters.,Theoiltankhasacapacityoftengallons.,Theoiltankhasacapacityofholdingtengallons.,这个油箱的容量是12加仑。hold,67,Suchhigh-speedaircraftstravelataspeedof700m.p.s.,RopeAmakesarightanglewithropeB.,TheanglecontainedbylinesABandBCis30。.,例,这个电机重1000kg。,直线AB和BC的夹角是30度。,绳A和绳B成直角。,这种高速飞机的速度能达到700米/秒。,Theengineweighs1000kg.,68,69,2.6.2仪表，计，仪，器,仪表，计：meter,gauge(gage)仪器，装置：instrument,device,equipment机，机器：machine,plant,equipment安培表：ampere-meter伏特计：volt-meter水表：water-meter电表：electricity-meter,煤气表：gas-meter温度计：thermometer雨量器：raingauge,70,newmachineshavebeeninstalled?,Themachineryisdrivenbyelectricity.,例,应当定期记录室内温度计的读数。,该机器用电驱动。,Machine与machinery不同。,Readingsofthethermometerintheroomshouldbetakenregularly.,newmachineryhasbeeninstalled?,Howmany,Howmuch,71,2.6.3测量，确定，估计，推断,测量确定估计推断,measuretakegauge,determine,estimatejudgegaugeevaluate,deduce,72,Thedistancebetweentwostarsismeasuredinlight-year.,Themetalspresentintheoremustbedetermined.,Thecarboncontentinsteelcanbedeterminedbychemicalanalysis.,Therateofflowcanbemeasuredbyavarietyofdevices.,Measure,determine,两星球之间的距离用光年表示。,流体速度可以用各种装置测量。,钢中的碳含量可用化学分析方法测定。,必须确定矿石中有些什么金属。,73,Thedeterminationofwhatelementorelementsarepresentinasubstanceiscalledqualitativeanalysis.quantitive,Itisestimatedthattheoilresourcesofourcountrywilllastforseveralhundredyears.,determine,estimate,测定物质中有哪种或哪几种元素叫做定性分析。,据估计，我国石油资源能持续几百年。,74,Wejudgedthatitwouldtakethreemonthstofinishthework.,Fromthefossilembedinit,wecandeducetheageofarock.,Judge,deduce,evaluate,我们推断工作还需三个月就完成了。,从埋在里面的化石我们可以推断岩石的年龄。,Wehaveevaluatedtheresultsoftheexperiment.,我们估出了实验结果。,75,2.6.4值读数,value,reading,XandYstandfordifferentvalues.,X和Y代表不同的数。,ThevalueofXIVisfourteen.,XIV是14。,Thereadingofthetemperaturewas96degrees.,温度读数是96度。,Whatarethetemperaturereadingsfortheweek?,上周的温度读数是多少？,76,2.6.5工具，用具，仪表,Tool手工工具Instrument仪器，scientific,surgical,musicalImplement:farming,gardeningMeter计量工具，计，表，仪Apparatus组合的装置和器件Appliance家用电器utensil家用器皿,77,2.7因果关系的表达,2.7.1因为，由于2.7.2结果，因此，所以,78,2.7.1因为，由于,原因状语从句（连词）：Becausesinceforasseeingthatinthat介词短语+名词词组：becauseofduetoasaresultofowingtoonaccountofinviewofbyvirtueof某些结构强调原因：thereasonforthisisthatthisisbecause,79,因为轴承破了，所以必须换个新的。,InviewofthefactthatOnaccountofthefactthatOwingtothefactthatSeeingthat,thebearingis,worn,itmustbereplacedwithanewone.,Thereasonwhythebearingmustbereplacedwithanewoneisthatitisworn.,Thebearingisworn.Thisaccountsforthefactthatitmustbereplacedwithanewone.,80,Hewaspardonedinviewofthecircumstances.,Someofthesteamcondensesasaresultoftheexpansion.,Thesurfacetobeweldedmustbethoroughlyclean,fordirtwillweakentheweld.,再看几个例子,81,2.7.2结果，因此，所以,表达方法：sothusasaresulthencethereforehence,leadtoresultinsothatconsequentlywiththeresultthatinconsequenceof,82,因为温度升高，所以金属膨胀。,thereforesoconsequently,Thetemperatureincreased,themetalexpanded.,Theexpansionofthemetal,resultedfromwascausedbywastheresultof,theincreaseintemperature.,ledtocausedresultedin,Theincreaseinthetemperature,theexpansionofthemetal.,83,ThereforeAsaresultConsequentlyHence,Thecomputerarelargeandheavy.,theywillsoonbeobsolete.,sowiththeresult,Thecomputerarelargeandheavy,thattheywillsoonbeobsolete.,这种计算机又大又重，很快就会被淘汰的。,84,Thetemperatureofthegasrises.Asaresultitexpands.,ConsequentuponAsaresultofInconsequenceof,theriseinthe,temperaturethegasexpands.,resultsinleadsto,Ariseinthetemperatureofthegas,itsexpansion.,气体温度升高引起体积膨胀。,85,2.8表示程度的方法,VeryConsiderableFairlyPerfectRatherExtremelySlightly,稍微,非常,相当,极其,特别,极,Very,Extremely,Perfect,86,very,Itispossibletoobtainverypreciseselectivitybetweenmineralsdifferingonlyslightlyfromoneanotherinmagneticresponse.Verydimegrindingisnecessarytofreetheironminerals.,very,Very,87,very,AnotherpotentiallyverylargeareaofapplicationisinthepurificationofwaterVeryweaklyparamagneticmineralscanonlybeeffectivelyremovedfromanorefeediftheyareallowedtocomeintodirectcontactwiththemagnetpoletip.Infact,atthecenterofthesolenoid,theforceisveryclosetozero.,very,Very,very,88,extremely,ThisdesignismosteffectiveforproducingancleanmagneticconcentratefromrelativelycoarsematerialsAlargeseparatormaycontainover200tofirontocarrytheflux,hencecapitalandinstallationcostsarehigh.pyritehasanlowmagneticsusceptibility。,extremely,extremely,extremely,89,extremely,Certainalloyshavethepropertyofpresentingnoresistancetoelectriccurrentsatextremelylowtemperatures.Majoradvancesinmagneticseparationareanticipatedwhenextremelyhighintensitymagnetsutilizingsuperconductorsareintroduced.磁选最主要的发展还是用超导材料制成了磁性极强的磁铁。Superconductingmagnetscanproduceextremelyintenseanduniformmagneticfields.,90,slightly,Thisdevicec