浮动海洋钻井作业时位于水面的伸缩节，它允许钻井船升降(垂直运动)而保持导管接触海底。
A telescoping joint at the surface in floating offshore operations that permits vessel heave (vertical motion) while maintaining a riser pipe to the seafloor.
调节简单——能完全接触到气流校准控制器，从而能快速方便地调节浮动装置。
Adjusted simply — get to the air current adjust controller entirely, so that adjusting the float installation quickly and easily.
在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。
How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.
在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。
How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.
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