名词
中文翻译：重力供油润滑器
同义词：
['gravity feed pump', 'gravity feed pumper']
例句：
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1.The new gravity-feed lubricator is more efficient than the old model.
新型的重力供油润滑器比旧型号更高效。
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2. The engineer used a gravity-feed lubricator to reduce friction in the machine.
工程师使用重力供油润滑器来减少机器中的摩擦。
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3.The gravity-feed lubricator was designed to prevent wear and tear on moving parts.
重力供油润滑器被设计用来防止移动部件的磨损。