简介：Oilresourcesarenon-renewableandtheutilizationofoilresourcesshouldbesustainableandrational.Oilprocessing

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简介：我们常会碰到这样的句子:1.Hedoesn’tspeakthewayIdo.2.Idon’tknowthewayyouovercameallthedifficulties.theway用作“以某种方法(方式)”时本来要加介词in,但在现代英语中,省略介词in的情况却很普遍。例①中省略介词后的theway在意思上相当于连词as(象……那样)。例②中省略介词后的theway就相当于how(如何)的意思了。再看下面的句子:

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简介：Weproposeanovelschemeforopticalfrequency-lockedmulti-carriergenerationbasedonadirectlymodulatedlaser(DML)andaphasemodulator(PM)incascadethroughsynchronoussinusoidalradiofrequency(RF)signal.TheoptimaloperatingzoneforthecascadedDMLandPMschemeisdeterminedviatheoreticalanalysisandnumericalsimulation.Wedemonstrate16opticalsubcarrierscanbesuccessfullygeneratedbasedonthecascadedDMLandPMschemeintheoptimalzone.Thegenerated16opticalsubcarrieshavefrequencyspacingof12.5GHzandpowerdi?erenceoflessthan3dB.Theseresultsagreewellwiththoseofthenumericalsimulation.Wealsodemonstrateintensitymodulationanddirectdetection(IM-DD)basedononeofthe16generatedopticalsubcarriers.After20-kmsingle-modefiber-28(SMF-28)transmission,thebit-errorratio(BER)of1×10-9canbeattainedforboth3.125-and12.5-Gb/sbitrates.

简介：Threeyearsafterthe'BeltandRoad'(OBOR)Initiativewasproposed,morethan100countriesandinternationalorganizationshaveparticipated.ChinahassignedcooperationagreementstojointlypromoteOBORwithnearly40countries

简介：2013年5月16日，第十六届中国（重庆）国际投资暨全球采购会（简称：渝洽会）在重庆国际博览中心举行，大会吸引了来自全球各地的参展商及观众到来。本次渝洽会，宗申高调参展，携Z-one系列、V炫系列、RX3等多个产品参展。

简介：ＣＬＯＳＩＮＧＨＩＬＬＳＦＯＲＲＥＦＯＲＥＳＴＴＩＯＮ──ＡｎＥｆｆｅｃｔｉｖｅＷａｙｔｏＲｅｓｔｏｒｅａｎｄＩｎｃｒｅａｓｅＦｏｒｅｓｔｒｙＰｌａｎｔＣｏｖｅｒＴｏ“ｃｌｏｓｅｈｉｌｌｓ”（ｓａｎｄｐｌｏｔｓ，ｓｈｏａｌｓ）ａｎｄａｌｌｏｗｎａｔｕ...

简介：Nowadays,globalizationhasbecomeahottopic,notonlyinChina,butalsoinothercountries.Underthecontextofglobalization,traditionalcultureofeverycornerintheworld,includingdifferentregionsinChina,hasbeeninfluenced,andeventhreatenedtosomedegree.Inviewofsuchaphenomenon,UNESCO,togetherwithlocalgovernments,isdedicatedtosafeguardingandpreserveingtheworld'sculturaldiversityaswellasculturalheritages.

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简介：AChebyshevfittingwayforapropelleratlasacrossfourquadrantsisdiscussed.Asanexample,Chebyshevpolynomialfittingresultsanditserroranalysisaregiven.Becauseit’sdifficultgenerallytogetapropelleratlasacrossfourquadrants,awayisusedtoconstructanalternativewithhigheraccuracybasedontheproperties.Asanapplicationexample,analternativeforthepropellerpropertyofaDeepSubmergenceVebicleacrossfourquadrantsisgivenpracticallyandasimulationmodelofthe

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