名词
中文翻译：泵阀
同义词：
['pump valve', 'pump valve', "pump valve例句：1. The spool valve was the key to the engine's operation.（泵阀是发动机运行的关键。）"]
例句：
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1. The spool valve was the key to the engine's operation.
泵阀是发动机运行的关键。
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2. The technician replaced the spool valve with a new one.
技术员用一个新的泵阀替换了旧的。
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3.The spool valve is responsible for controlling the flow of fluid through the pipeline.
泵阀负责控制流体通过管道的流量。