钻机提升系统的钻井钢丝绳在油田钻井过程中突然断裂,造成设备顿钻事故。
The drilling wire rope of a rig's hoisting system suddenly broke during drilling process, cause serious damage of equipment.
文摘:钻机提升系统的钻井钢丝绳在油田钻井过程中突然断裂,造成设备顿钻事故。
Abstract : the drilling wire rope of a rig ' s hoisting system suddenly brokeduring drilling process , cause serious damage of equipment.
理查德·伯顿在1969年为伊丽莎白·泰勒买下又一颗巨钻时,也许对南非小镇库里南一无所知。
RICHARD BURTON probably knew nothing of the small South African town of Cullinan when he bought yet another chunky diamond for Elizabeth Taylor in 1969.
应用推荐