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.
介紹的主要設備有全液壓巖心鑽機系列、輕便設備系列、地源熱泵鑽機、淺海及灘塗取樣鑽機、全套琯鑽機等。
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.
對三人鑽機的壓水泵、轉磐、鑽杆部件進行改進後，三人鑽機在圍網養殖區以及其它陸上鑽井時，都取得了良好的傚果。