Emergency Fuel Shut Off Valve.

燃油紧急关闭阀门。

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。

Oxygen flows through the pressure reducing regulator and shut off valve to the masks.

氧气通过减压调节器和关断活门流向氧气面罩。

The rotating valve is connected with pressure cylinder which is connected with four shut off valves through one hydraulic lock.

转阀通过一个液压锁与增压缸相连。增压缸与四个闭锁阀相连。

The low pressure header and each branch shall have a 6 mm minimum, non ferrous shut off valve for each instrument requiring an air supply and a compression coupling for each air purge connection.

低压头和每个分支应为6毫米，非铁关断阀在每个送风和空气净化压缩为每个连接耦合仪器最低要求。