为了降低三缸单作用钻井泵的压力和排量波动，通常在排出管线上安装有空气包。
In order to reduce the fluctuation of pressure and discharge capacity of the triplex drilling pump, the air accumulator is often fixed on the discharge pipe.
在海洋使用浮动船作业时，节流和压井管线是从海底防喷器组直接排出的，之后通过外部的导管到达海平面。
In floating offshore operations, the choke and kill lines exit the subsea BOP stack and run along the outside of the riser to the surface.
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