名词
中文翻译：Unknown
同义词：
['gear', 'gearbox', 'pump', 'pumping device']
例句：
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1.The engineer designed a new gear type for the machine.
工程师为机器设计了一种新的齿轮类型。
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2. The pump is used to transport water from one place to another.
这个泵用来将水从一个地点输送到另一个地点。
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3.The gear type was chosen based on its efficiency and durability.
这种齿轮类型的选择是基于其效率和耐用性。