The structure is convenient in installation of pipe valves.
同时该结构也方便阀门在管道上的安装。
This paper introduces a method to analyze and predict the performance parameters of jet pipe valves.
介绍一种分析、预测射流管阀性能参数的方法。
Should be fully open before the start of suction and discharge pipe valves, non-closing valve started.
启动前应全开吸入和排出管路中的阀门，严禁闭阀启动。
Should be fully open before the start of the suction and discharge pipe valves, non-closing valve to start.
启动前应全开吸入和排出管路中的阀门，严禁闭阀启动。
Should be fully open before the start of the suction and discharge pipe valves, non-closing valve to start.
启动前应全开吸入和排出管路中的阀门，严禁闭阀启动。
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