名词
中文翻译：密度控制阀
同义词：
['density control device', 'density controlmechanism']
例句：
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1. The densitycontrol valve is used to regulate the flowof gases in a pipeline.
密度控制阀用于调节管道中气体的流动。
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2.The engineer installed the density control valve atthe bottom of the tank to prevent overfilling.
工程师在储罐底部安装了密度控制阀，以防止过填充。
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3. The densitycontrol valve is crucial for maintaining the stabilityof the fluid in the system.
密度控制阀对于保持系统内流体的稳定性至关重要。