The article mainly had a research on the pressure rule inside the hydraulic cylinders when the mud pump has been assembled with air chamber on the suction pipe and stack pipe.
但国内还没有对安装吸入空气包后液缸内吸入压力的变化规律作出理论上的分析。
A high-pressure pipe leading from an outlet on the BOP stack to the high-pressure rig pumps.
从防喷器组出口到高压钻机泵之间的高压管线。
The result is that the pressure drop is increased rather dramatically over single-phase flow and that the liquid tends to stack up in the pipe.
其结果是两相流管道的压降比单相流动有极大的增加，而且液体在管道内堆积。
The shears can be used for activities like cutting bent or broken riser, shearing pipe or clearing an area to prepare for capping stack activities.
液压剪也可用于切割弯管、切断隔水管、剪切钻杆，并为其他应急封井作业清理空间。
The shears can be used for activities like cutting bent or broken riser, shearing pipe or clearing an area to prepare for capping stack activities.
液压剪也可用于切割弯管、切断隔水管、剪切钻杆，并为其他应急封井作业清理空间。
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