I pneumatic leak test at a pressure of not less than 6 bar after assembly of all tank valves and fittings.
气阀及配件装配后不少于6巴压力的气压测漏报告。
One of these valves - which maintain tank pressure during liftoff - broke during the last shuttle launch in November.
其中一个用于在发射时保持燃料箱压力的阀门，在11月的发射前破裂。
The containment spray system consists of two pumps, spray ring headers, a spray additive tank, a number of motor operated isolation valves and all necessary piping, instruments etc.
安全壳喷淋系统内有两台喷淋泵，喷嘴，喷淋添加箱，许多安全壳隔离阀和相关的管道仪表等。
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