名词
中文翻译：往复式发动机
同义词：
['reciprocating motor', 'reciprocating pump例句：1. The new car has a reciprocating engine that makes it run smoothly.（这款新车有一个往复式发动机，让它运行得非常平稳。）']
例句：
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1. The new car has a reciprocating engine that makes it run smoothly.
这款新车有一个往复式发动机，让它运行得非常平稳。
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2.The old steam engine was replaced with a reciprocating engine for better efficiency.
为了提高效率，旧的蒸汽发动机被往复式发动机所取代。
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3. The reciprocating engine is responsible for the rotation of the gears in the transmission.
往复式发动机负责传动系统中齿轮的旋转。