英语三副题库ppt课件.ppt

1163 back upwire Back upwiretoconnectchaintobaseofwindlassorothersuitablesecuringpoint 1 1168 2 1182 3 1218 南北半球两个副热带高压之间气压最低 气流汇合的地带就称为热带辐合带 它是热带地区主要的 持久的大型天气系统 有时甚至可以环绕地球一圈 它的移动 强弱变化对热带地区的长 中 短期天气变化影响极大 一般分为无风带和信风带两种类型 大多数热带气旋 台风 产生在辐合带中 4 1223 5 1257 webframe 6 7 8 9 10 11 12 13 14 15 16 1299 17 1330 Thievage themeasurementoffreewaterinacargotankthroughtheuseofaninstrumentorwater findingpasteonabobInnage 剩油量 剩余货物 18 1331 19 1339 Inmeteorology BuysBallot slawmaybeexpressedasfollows IntheNorthernHemisphere ifapersonstandswithhisbacktothewind thelowpressureareawillbeonhisleft 1 ThisisbecausewindtravelscounterclockwisearoundlowpressurezonesintheNorthernHemisphere ItisapproximatelytrueinthehigherlatitudesoftheNorthernHemisphere andisreversedintheSouthernHemisphere buttheanglebetweenthepressuregradientforceandwindisnotarightangleinlowlatitudes 20 1341 21 1344 atimepieceortimingdevicewithaspecialmechanismforensuringandadjustingitsaccuracy foruseindetermininglongitudeatseaorforanypurposewhereveryexactmeasurementoftimeisrequired 22 1345 23 1348 BecketBend sheetbend 24 bowline Clovehitch Lark shead 25 1249 Wireropetendstokinkduringuncoilingorunreeling especiallyifithasbeeninserviceforalongtime 26 1381 27 1393 kinktakeaturnunder 28 1392 Averticalopenfaceddiamondshapetomeandanger 29 Averticalopenfaceddiamondshapehavingacrosscenteredinthediamondtomeanthatavesselisexcludedfromthemarkedarea 30 Acircularshapetomeanthatavesseloperatedinthemarkedareaissubjecttocertainoperatingrestrictions 31 Asquareorrectangularshapewithdirectionsorinformationletteredontheinside 32 1422 33 34 1427 35 1428 36 1442 Flatseizing Rackingseizing Throatseizing 37 1445 38 1459 grannyknot Itwassaidtobeasquareknotdonewrongbya granny 39 1477 daggerboard 40 1537 Becketbend sheetbend单编结 Bowline单套结 41 1543 gantline 42 1546 43 1553 Sailboatsvesselsnotundercommandrestrictedinabilitytomaneuvertowingorpushinganothervesselengagedinfishingwithnetsortrawling Oneprolongedfollowedbytwoshortblastssoundedattwo minuteintervals 44 1555 45 1556 46 1580 rotarygrinder 47 1583 towhookforquickrelease 48 1597 generalemergencyalarm Thegeneralemergencysignalisasignalusedonboardcruiseshipsintimesofemergency Thesignaliscomposedofsevenshortblastsfollowedbyonelongblastontheship swhistleandinternalalarmsystem Within24hoursofembarkationofallpassengers thecrewwillconductamandatorymusterdrillinwhichtheGeneralEmergencySignalissounded Thepurposeofthedrillistoeducatepassengersofemergencyproceduresshouldanactualemergencyoccur Thesignalalertspassengersofanemergencysothattheywillbeginproperproceduresinwhichallpersonscollecttheirlifejacketsandproceedtotheirassignedmusterstations Thereisalsoanabandonshipalarmwhichisusedshoulditbecomenecessarytoabandonship afterallothereffortshavebeenexhausted Thissignalisgivenaudiblybytheship sMaster akaCaptain overthePAsystem Itisnevergivenbyautomaticmeansorwithrecordedmedia 49 1614 gnomonicprojection 50 1638 cirrocumulus 51 1640 Corioliseffect Onceairhasbeensetinmotionbythepressuregradientforce itundergoesanapparentdeflectionfromitspath asseenbyanobserverontheearth Thisapparentdeflectioniscalledthe Coriolisforce andisaresultoftheearth srotation 52 1652 liferafttowingbridle 53 1654 kortnozzle 54 1669 55 Articulatedanchor Flipperdeltaanchor Baldtanchor 56 1674 Longsplice 57 Laidrope braidedrope 58 1693 twoblocked 59 Theterm two blocked meansthatbothblocksofatackleareasclosetogetherastheywillgo Youmayalsohearthistermcalledblock and block Tooverhaulistolengthenatacklebypullingthetwoblocksapart Toroundinmeanstobringtheblocksofatackletowardeachother usuallywithoutaloadonthetackle oppositeofoverhaul 60 61 1708 gasfreeing ForcarryingoutGasFreeingofthetankAftercargodischarge tankcleaning wheneveritisnecessarytogasfreeanemptytankcontaininghydrocarbongasmixturesoramixtureofIG HCgases itshallfirstbepurged usinginertgas untiltheHC hydrocarbon contentreachestobelowthecriticaldilutionlineorHCconcentrationinthetankatmosphereislessthan2 byvolume Thisisdonesothatduringthesubsequentgasfreeingnoportionofthetankatmosphereisbroughtwithintheflammablerange ThisinertgasusedforpurgingshallcontainOxygen lessthan5 byvolume toensuretheabove ThereplacementofatankatmospherebyinertgascanbeachievedbyeitherInertingorPurging Ineachofthesemethodsoneoftwodistinctprocesses Dilutionordisplacement willpredominate Formoredetailsongasevolution ventinganddispersioncriteriaandprecautions refertotherelevan