DISK VALVE (OBSOLETE TERM - BUTTERFLY VALVE), an actuator-operated, rotating device in a duct for closing and opening the duct passage.
盘式活门,(老式叫法:蝶形活门),利用作动简进行操作,安装在管道上的旋转装置。用来控制管道的通断。
DISK VALVE (OBSOLETE TERM - BUTTERFLY VALVE), an actuator-operated, rotating device in a duct for closing and opening the duct passage.
盘式活门,(老式叫法:蝶形活门),利用作动简进行操作,安装在管道上的旋转装置。用来控制管道的通断。
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