名词
中文翻译：通孔阀
同义词：
['throat valve', 'through-flow valve']
例句：
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1.The through valve is essential for maintaining theproper flow of gases in the pipeline.
通孔阀对于保持管道中气体的适当流动至关重要。
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2. The through valve was designedto prevent air from entering the system duringmaintenance.
通孔阀被设计成在维护期间防止空气进入系统。
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3. The through valvewas replaced with a more efficient design toreduce energy consumption.
通过更换为更高效的设计，以减少能源消耗。