... valve bounce 气门跳出; 阀跳 valve box 阀盒; 阀门室; 阀门箱; 阀室; 气门箱 valve breakage 气门损坏 ...
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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.
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