At last, the application specials of the bellows expansion joints and the calculation methods for the intermediate pipeguide spacing were also expressed.
最后，对波纹补偿器的应用特点及管架间距的计算做了较深入讨论。
2
Objective Explore self-supporting optical cable line guide wire threaded pipe endotracheal intubation in difficult intubation time of the application of the efficacy and safety.
目的探讨自制光索支撑引导行钢丝螺纹管气管内插管在困难气管插管中应用的有效性和安全性。
3
An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of a well.