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.
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。
2
In floating offshore operations, the choke and kill lines exit the subsea BOP stack and then run along the outside of the drilling riser to the surface.
在进行浮动的海上作业时，节流和压井管线从水下防喷器组出来，之后沿钻井隔水导管外侧面到达水面。
3
Place the mower on a flat surface. Turn the throttle trigger to the "Choke" position.