名词
中文翻译：环形齿轮泵
同义词：
['环形齿轮泵，环形齿轮泵，环形齿轮泵']
例句：
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1.The ring-shaped gear pump is used to pump oil from the engine.
环形齿轮泵用于从发动机中抽油。
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2.The ring-shaped gear pump is a common component in many mechanical systems.
环形齿轮泵是许多机械系统中常见的组件。
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3. The ring-shaped gear pump is designed to be easy to maintain and operate.
环形齿轮泵设计得易于维护和操作。