Still, it allows emergency shutoff of the system.
还有，在遇到紧急情况时，能够迅速有效关闭系统。
Close shutoff valve No. 2 then shut off valve No. 1 on test assembly.
关闭2号关闭阀，然后关闭测试总成上的1号阀门。
To fill the system, open the shutoff valve upstream of the regulator.
如果要给系统进水，请打开调节阀上游的关断阀。
The perimeter seat design gives bubble tight shutoff in either direction.
这种全周长阀座结构能够实现任何方向的气泡级密封关闭效果。
When valve is filled, open the downstream shutoff slowly and fill the water supply system.
阀门注满后，慢慢开启下游关闭阀对水供应系统注水。
When valve is filled, open the downstream shutoff slowly and fill the water supply system.
阀门注满后，慢慢开启下游关闭阀对水供应系统注水。
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