名词中文翻译
中文翻译：往复式扩张器
同义词：
['reciprocal engine', 'reciprocating motor', 'reciprocating pump例句：1. The reciprocating expansion-engine is used to expand the oil and gas.（往复式扩张器用于扩大石油和天然气。）']
例句：
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1. The reciprocating expansion-engine is used to expand the oil and gas.
往复式扩张器用于扩大石油和天然气。
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2. The reciprocating expansion-engine is an essential part of the oil drilling process.
往复式扩张器是石油钻井过程的一个必要部分。
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3.The reciprocating expansion-engine is responsible for driving the pistons in the cylinder.
往复式扩张器负责驱动气缸中的活塞。