n.
用以遮闭之物；栓；遮断shutoff例句
No downstream shutoff valves are allowed.
不允许有下游关闭阀。
FLIGHT CONTROLS HYDRAULIC SHUTOFF VALVES.
飞行操纵液压关断活门。
Machined seat allows tight shutoff.
机械阀座,可实现气密性关闭。
Close the shutoff valve upstream of the regulator.
关闭调节阀上游的关断阀。
Start Up: The downstream shutoff should be closed.
启动：下游关闭阀应该处于关闭状态。
Purpose: To test shutoff #2 for tightness.
目的：检测关闭2号的紧固密封性。
