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。
One of these valves - which maintain tank pressure during liftoff - broke during the last shuttle launch in November.
具有铸造、机加工、组装工作经验，特别是齿轮箱或阀门工业。
Experienced in casting, machining, assembly, especially in gearbox and valve industry.
当千斤顶需要下降时，一个带锭子的针型阀门被放松来使液体通过圆筒流回储备液箱。
A needle valve with a threaded spindle is unscrewed to open a passage for the liquid to escape to the reservoir from the cylinder when the jack is required to be lowered.
低温设备仪表在线阀门的阀帽和填料箱应为加长阀帽型或伴热型(必要时)，从而避免阀杆结冰。
The bonnet and packing box of low temperature service instrument in-line valves shall be extended bonnet type or heat traced, if necessary, to avoid freezing of valve stems.
根据公司的操作流程安装阀门、齿轮箱和执行器。
Mechanical assemble of a range of valves, gear box and actuators in accordance with Company procedures.
全自动软化系统主要由多路阀、控制器、树脂罐、盐箱组成，多路阀是在同一阀体中设计有多个通路的阀门。
Automatic softening system mainly consists of multiple valve, controller, resin tank, salt box composition, multi-channel valve is in the same body design have multiple pathways of valve.
全自动软化系统主要由多路阀、控制器、树脂罐、盐箱组成，多路阀是在同一阀体中设计有多个通路的阀门。
Automatic softening system mainly consists of multiple valve, controller, resin tank, salt box composition, multi-channel valve is in the same body design have multiple pathways of valve.
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