阀芯的轴向运动则由两端阀腔的静压力推动。
While the linear motion is actuated by pressure difference of two end spool chamber.
当钻井下沉时，海底立管在顶部附近破裂，另一端还连在防喷阀上。 在随后的倒塌中，它像脆饼一样弯曲。
When the rig sank, the riser broke near the top while remaining attached to the blowout preventer at the bottom, bending itself like a pretzel in its subsequent collapse.
排放阀可以将收集的液体和固体微粒排放掉，防止液体流向下游端，污染下游端的压缩空气系统。
Discharge valve can be will collect the liquid and solid particle emissions, prevent the liquid flow off the downstream, the pollution downstream compressed air system.
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