The experiment shows the technique possessing high core recovery rate and quick drilling speed.
试验表明，该技术方法具有岩芯（样）采取率高、钻进速度快的特点。
This lays down a theoretical foundation for quick selection of right axial vibration drilling parameters and successful automatic machining of deep holes.
为快速选择合适的轴向振动钻削参数，实现深孔的顺利加工与自动化加工奠定了理论基础。
Drilling unit has the functions including rapid falling, slow work-feeding and quick feeding back to improve working efficiency.
钻孔单元具有空行程快进，慢速工进和快速回程功能，提高工作效率。
The use of the tapping chuck is particularly advantageous when working with the quick change system on drilling machines that allows to drill and tap in the same position without centring again.
另一优势的体现在这种快换的装置允许在同一个位置上钻孔或者是攻丝，不需要再做中心的调整。
The invention relates to a drilling machine which is mainly used for processing a plug part of a quick coupling.
本发明涉及一种钻孔机，其主要用于加工快速接头的插头部分。
This lays down a theoretical foundation for quick selection of right axial vibration drilling parameters and successful automatic machining of deep holes.
针对叠层复合材料的微小孔加工 ，提出了阶跃式多元变参数振动钻削新方法 。
The quick latch jack can be widely used in the coring operation in the oil and gas drilling engineering.
本实用新型可广泛用于石油、天然气钻井工程取岩心作业中。
This paper summarizes the drilling experience of cluster wells in high quality and quick speed in Bohai SZ36-1J area.
本文总结了渤海绥中36—1 油田J区优质快速钻井的经验。
Main hydraulic components such as oil motor, oil pump, quick joint so on are imported from US to make the drilling machine stable and reliable.
油马达、油泵、快速接头等主要液压元件均采用美国原装进口，使钻机工作稳定、可靠。
Main hydraulic components such as oil motor, oil pump, quick joint so on are imported from US to make the drilling machine stable and reliable.
油马达、油泵、快速接头等主要液压元件均采用美国原装进口，使钻机工作稳定、可靠。
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