Horizontal hydrodynamics of deep sea mining lifting pipe consists of two parts: the forces caused by current and wave.
深海采矿扬矿管上的横向液动力由两部分组成：海流作用力、波浪作用力。
Pipe beveling machine is used for lifting raw materials.
管子坡口机是用于起重机械的原材料。
In pipe laying and lifting analysis, the contact condition between pipeline and seabed, including deflection, rotation Angle and bending moment, is sometime tricky in a normal mechanical model.
海底管道的铺设分析和提升分析都用到管道和海床之间的接触条件，这个同时含有挠度、转角和弯矩的接触条件，在一般的力学模型中是很难理解的。
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