你从那个学校来 » You come from the same school 保持机舱清洁 » Keep the engine clean 因为你.我的世界才完美 » Because of you.
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To keep the inside working parts of your engine clean, use engine oil and fuel that have tested engine cleaning properties.
为保持引擎内部工作部件的清洁，使用经检测具有清洁引擎性能的机油和燃料。
Such an exercise lets them keep a clean machine while learning how the automobile engine works.
此类活动使他们能够在保持汽车清洁的同时，还了解了汽车引擎是如何工作的。
Check, maintain and clean the diesel-engine generator sets, compressor, oil and water supply equipment, etc. and keep them in work condition.
检查、维保和清洁柴油发电机组、压缩机、供水供油设备，保证其良好的工作状况。
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