名词
中文翻译：往复泵
同义词：
['reciprocal pump', 'reciprocating pump']
例句：
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1.The reciprocating pump is used to move water in a pipeline.
往复泵用于管道中移动水。
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2. The engineer designed the reciprocating pump for efficient water distribution.
工程师设计了往复泵，以实现高效的水分配。
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3. The reciprocating pump was tested under various conditions to ensure its reliability.
往复泵在各种条件下进行了测试，以确保其可靠性。