Drilling mast being as the key part of drilling equipment, its mechanical behavior is closely related to the safety of the operating drilling system.
钻井井架作为钻机系统设备中的关键部分，其力学性能直接关系到整套钻机系统的安全生产。
The fixed set of pulleys (called sheaves) located at the top of the derrick or mast, over which the drilling line is threaded.
位于重型井架或桅架式井架顶部的固定的滑轮组（称之为滑车轮槽轮），通过该滑轮组钻井钢丝绳进行穿绳。
Main parts such as crownblock, mast, substructure, rotary table and travelling system of drilling rig meet API standard.
钻机天车、井架、底座、转盘及游动系统等主要配套件符合API规范。
Main parts such as crownblock, mast, substructure, rotary table and travelling system of drilling rig meet API standard.
钻机天车、井架、底座、转盘及游动系统等主要配套件符合API规范。
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