名词
中文翻译：主油泵
同义词：
['main engine', 'main pump']
例句：
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1.The main oil pump is responsible for distributing the oil throughout the engine.
主油泵负责在整个引擎中分配油。
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2.Main oil pumps are essential for maintaining the proper functioning of an engine.
主油泵对于保持引擎正常工作至关重要。
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3.During maintenance, the technician had to replace the main oil pump.
在维护期间，技术人员不得不更换主油泵。