名词
中文翻译：门闸转换阀
同义词：
['gate switch', 'gate valve']
例句：
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1.The gate change-over valve is responsible for controlling the flow of fluids through the pipeline.
门闸转换阀负责控制流体通过管道的流量。
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2. During maintenance, the technicians had to replace the gate change-over valve with a new one.
在维护期间，技术人员不得不用一个新的门闸转换阀来替换旧的。
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3.The gate change-over valve was designed to prevent leaks during heavy rains.
门闸转换阀被设计成在大雨中防止泄漏。