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1、以下是翻译测试：中英短句1.常压蒸馏装置是将原油分离为汽油、煤油、柴油、润滑油原料、化工原料和渣油，是属于分离馏份的液体精馏。Atmosphericdistillationdeviceisusedtoseparatecrudeoilintogasoline,kerosene,dieseloil,industrialchemicals,rawmaterialsoflubricatingoil,andtheresidue,whichbelongstoliquiddistillationofseparatedfractions.2.气液两相充分接触时，高温气相中的重组份被冷凝放热
2、，而下降的液相回流中的轻组份被加热气化，结果上升的气相被下降的液相冷却，气相中重组份不断被冷凝除去，液相中轻组份不断气化而提浓，这就是传质传热过程。Whengasphaseandliquidphasegetfullycontacted,therestructuringcomponentinthehightemperaturephasewillgetcoldcondensedandheatreleased,,whilethelightcomponentintheliquidflowwillbeheatedandgasified,asaresult,risinggasphase
3、willbecooledbyfallinggasphase,andtherestructuringcomponentwillbecontinuallycondensedandremoved,thelightcomponentintheliquidphasewillbecontinuouslygasifiedandthickened,andthisistheprocessofmassandheattransfer.段落加热混合物使其沸点较低的轻组份汽化和冷凝，进行粗略分离的操作称为蒸馏。蒸馏所得的冷凝物称为馏出物。水是纯物质，馏出物就是蒸馏水，而原油是不同沸点的复杂组份组成的
4、混合物，馏出同样体积的馏出物可以有不同的沸点范围，不同沸点范围的馏出物称为馏份。一定温度下蒸馏出来的馏份就表示石油产品的馏程。Heatthemixtureandmakethelowboilingpointoflightcomponentsvaporizedandcondensed,andtheroughseparationiscalleddistillation.Thecondensationproductthroughdistillationisreferredasdistillate.Wateristhepuresubstanceanddistillateisthedi
5、stilledwater,whilecrudeoilisamixtureofcomplexcomponentsofdifferentboilingpoints,anddistillatewiththesamedistillationvolumecansharedifferentboilingrange,anddistillatewithdifferentboilingrangeiscalleddistillatefraction.Thedistillatefractionundercertaintemperatureofdistillationindicatesthedis
6、tillationrangeofpetroleumproducts.常压蒸馏是指在常压条件下，根据原油中各组份的沸点不同，把原油“切割”成不同馏份的工艺过程。Atmosphericdistillationreferstotheprocessengineeringof"cutting"crudeoilintodifferentdistillatefractionsaccordingtothedifferentboilingpointsofallcomponentsunderatmosphericpressureconditions.常压蒸馏是原油加工的第一道工序。本装置是根据
7、原油中各组份的沸点（挥发度）不同，用加热的方法从原油中分离出各种石油馏份。其中常压蒸馏蒸馏出低沸点的汽油、煤油、柴油等组份，而沸点较高的蜡油、渣油等组份留在未被分出的常压渣油中，进入催化裂化作为二次加工原料。Thefirststepofcrudeoilprocessingistheatmosphericdistillation.Thedeviceisbasedonthedifferentboilingpoints(volatility)ofeachcomponentincrudeoil,andisolatesvar
