名词
中文翻译：往复式空气发动机
同义词：
['reciprocating engine', 'reciprocating motor']
例句：
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1. Thenew reciprocating air engine is more efficient than the old one.
新型往复式空气发动机比旧的更高效。
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2.The reciprocating air engine provides power for our farm machinery.
往复式空气发动机为我们农场的机器提供动力。
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3. The reciprocating air engine was developed to improve efficiency in transportation.
往复式空气发动机被开发出来，以提高运输效率。