与一般采用纵向进给的车削作业相反，那些侧表面通过采用横向进给产生。
Those side surfaces are generated through the use of the cross feed, contrary to turning operations, where the usual longitudinal feed is used.
基于理论力学和稳定性理论，分析了车载无绷绳修井机作业时侧翻和后倾翻的稳定性。
Based on theoretical mechanics and stability theory, the paper analyzes the stability in preventing rollover and rear-tipping during the operation of vehicle-mounted workover rig without guy wire.
断铣工具是用来割断并磨铣井内一段套管以能够进行侧钻作业的专用工具。
The breaking and milling tool is a special tool used which is used to cut and mill a section of casing in hole so that sidetrack drilling operation can be done smoothly.
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