名词
中文翻译：往复式装置
同义词：
['reciprocal device', 'reciprocating machine']
例句：
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1.This new type of reciprocating device is highly efficient and energy-saving.
这种新型往复式装置非常高效且节能。
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2. The reciprocating device was used to pump water from the well.
往复式装置被用来从井中抽水。
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3.The reciprocating device was responsible for reducing noise levels in the factory.
往复式装置负责降低工厂的噪音水平。