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Researches indicate that the new type of DTH hammer without drilling machine can make DTH hammer achieve percussive and rotary drilling using air compressor. 借鉴凿岩机的转钎机构,利用活塞的回程能量带动钻头旋转。
Construction method with rotary drilling machine and occlusive rod 旋挖钻机与钻孔咬合桩施工工法
Usage and Effects of Frontback Circulating Rotary Drilling Machine 正反循环回转钻机的使用及功效
Study on the Depth Measurement Technology of AD-150 Rotary Drilling Machine AD150型旋挖钻机深度检测技术研究
rotary drilling machine 旋转钻机,回转式钻车,旋转式钻机
the rotary drilling machine 旋挖钻机
WISDOM DEEP HOLE DRILLING MACHINE CO., LTD. 慧能深孔机械有限公司。
HANGZHOU WESTAKE BENCH DRILLING MACHINE CO., LTD. 杭州西湖台钻有限公司。
Construction technology of rotary drilling machines and impact hammer working together in mollisol area 软土地区旋挖钻机与振动锤联合施工钻孔灌注桩施工工艺
The mast assem-bly supports the rotary drill head and its hoisting mechanism. 支架组件支持转动钻头及其提升机构。
The drilling machine can do many thingsbesides drilling holes. 除钻孔之外,在钻床上还可以完成多种工序。
Dimond drilling sheet : Suit for various kind of drill machine. 简介: 金刚石钻片：适用于台钻、进口、国产机械专用设备。
The drilling machine should not be started while being debugged. 正在调试的钻床不得开动。
The LB 28 large rotary drilling rig is an ideal complement to the LRB combined piling and drilling rigs. LB28大型旋转钻机是LRB组合打桩和钻孔机器的理想补充。
This new model of drilling machine can bore through solid rock ten metres deep. 这台新型钻机能钻透十米厚的坚固岩石。
With expert chassis of Rotary drilling rig and strong box type mast, it has high working stability. 应用徐工成熟技术制造的旋挖钻机底盘，结实的箱型臂架，具有超强稳定性；
The forming mechanism of the bias force is the key to the study of the modulated steerable rotary drilling system. 导向力的形成机理是研制旋转导向工具的核心。
After he invented the new drilling machine, honors were thrust upon him. 他发明了新的钻机之后，许多荣耀都加在他的身上了。
In modern rotary drilling, especially formulated mud is used in the well to keep the reservoir fluids in place, among other functions. 在现代旋转钻探作业中,经特殊配制的泥浆的功用之一就是使油井中储集层流体保持在原位不动。
After he invented the new drilling machine, honours were thrust upon him. 他发明了新的钻机之后,许多荣耀都加在他的身上了。