管子下入管沟后，由侧铲推土机或装有回填附件的拖拉机回填管沟。
Backfilling the trench following the lowering-in of the pipe is carried out by angledozers or backfilling attachments to tractors.
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.
起重机也可设置在卡车底盘的后侧，这样就可使起重机在卡车后侧之上实现近乎100%额定装载能力。
It can also mount at the back of the truck chassis, and enable the crane to lift 100% load capacity over the back.
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