名词
中文翻译：手部扩张阀门
同义词：
['hand-operated valve', 'hand-operated expansion valve']
例句：
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1. The hand expansion valve is responsible for controlling the flow of gases in the pipeline.
手部扩张阀门负责控制管道中气体的流动。
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2. The hand expansion valve was designed to prevent pressure surges during system startup.
手部扩张阀门设计用来防止系统启动时的压力激增。
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3.The hand expansion valve is essential for maintaining proper pressure levels in the system.
手部扩张阀门对于保持系统中适当的压力水平至关重要。