The pneumatic percussion rotary drilling is mainly operated in the area where liquid is hardly or not permitted to be used as the circular medium.
气动冲击回转钻进主要应用于难用或忌用液体作为循环介质的地区。
Can be widely used in mining the use of electric, pneumatic, hydraulic bolt drilling products mines, railway tunnels, metallurgical engineering and other industries.
能广泛服务于矿用使用电动、气动、液压锚杆钻机产品的矿山、铁道隧道、冶金工程等行业。
The trenchless pneumatic hammers which don t rotate themselves during drilling include impact moles, pipe ramming hammers and pipe bursting hammers.
穿孔过程中自身不回转的非开挖气动锤包括冲击矛、夯管锤和爆管锤。
The main contents of this thesis are the research of simultaneous casing & coring method by pneumatic Down-the-Hole (DTH) hammer drilling and the innovation of a novel vegetable-gum drilling fluid.
本文是以中国水电顾问集团成都勘测设计研究院负责“架空层钻进取心技术研究”项目为依托，研究的主要内容是空气潜孔锤跟管取心钻进技术和新型植物胶冲洗液的开发研究。
The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.
文中回顾了在建桥工程中，应用风动潜孔锤钻进桥桩桩孔的经验，具体介绍了使用的设备、工具及施工工艺技术。
Gas drilling technology as our current and future main oil drilling technology, pneumatic pneumatic is one of key equipments of it to determine achieved effective drilling.
气体钻井技术作为我国当前及未来的石油钻探主力技术，气动冲击器是其能否实现有效钻进的关键设备之一。
In the landslide and slope management, anchoring drilling methods used mainly Rotary-drilling or one-way Pneumatic DTH for drilling.
在滑坡及边坡治理中，锚固孔成孔方法主要采用回转钻进或单向潜孔锤进行钻进。
Subgrade excavation of rock using pneumatic drill and DTH drill Hole drilling, loose blasting in small and deep hole blasting, excavators and loaders loading ballast, dump truck, bulldozer tie.
正在翻译，请等待…路基挖石方采用风钻和潜孔钻打眼，小型松动爆破和深孔爆破，挖掘机和装载机装碴，自卸汽车运输，推土机配合。
Subgrade excavation of rock using pneumatic drill and DTH drill Hole drilling, loose blasting in small and deep hole blasting, excavators and loaders loading ballast, dump truck, bulldozer tie.
正在翻译，请等待…路基挖石方采用风钻和潜孔钻打眼，小型松动爆破和深孔爆破，挖掘机和装载机装碴，自卸汽车运输，推土机配合。
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