portable drilling rig

基本解释

The description covers full-hydraulic core drilling machines, portable drills, geo-thermal drills, offshore and beach sampling equipment, all-casing drilling rig, etc.
介绍的主要设备有全液压岩心钻机系列、轻便设备系列、地源热泵钻机、浅海及滩涂取样钻机、全套管钻机等。
After reformation of drill pump, rotary table and drilling rod, the triple-men portable rig has achieved good results when drilling is in breed zone by netting box and other land areas.
对三人钻机的压水泵、转盘、钻杆部件进行改进后，三人钻机在围网养殖区以及其它陆上钻井时，都取得了良好的效果。