名词
中文翻译：阀门直径
同义词：
['valve size', 'valve opening']
例句：
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1.The valve diameter is crucial for the proper functioning of the system.
阀门直径对于系统的正常运行至关重要。
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2. The valve diameter affects the flow rate of the fluid through the pipe.
阀门直径影响通过管道的流体流量。
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3.The valve diameter was reduced to improve efficiency in the manufacturing process.
为了提高生产效率，阀门直径被减小了。