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1)  bit hydraulics
钻头液力特性
2)  bit hydraulics
钻头水力特性
3)  hydraulic variable diameter drilling bit
液力变径钻头
1.
The structure and application of multi-use of hydraulic variable diameter drilling bit;
多用途液力变径钻头的结构原理及应用
4)  bit trajectory behavior
钻头轨迹特性
5)  fully hydraulic driving head drill
全液压动力头钻机
1.
Based on the drilling effects of 75 mm wire-line coring drilling by CS14 fully hydraulic driving head drill in Kangbao copper mine and polymetallic ore in Mongolia,the paper made the analysis on the advantages and disadvantages compared with spindle drilling machine and put forward the opinion that driving head drill was the trend in developing geological coring drill in China.
通过CS14型全液压动力头钻机在河北康保铜矿、内蒙古黄旗多金属矿2个矿区进行Φ75 mm绳索取心钻探效果,分析了全液压动力头钻机相对于立轴式钻机的优点及其不足,提出动力头钻机应是我国地质岩心钻机大力发展的趋向的看法。
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6)  bit force
钻头受力
补充资料：大直径牙轮钻头


大直径牙轮钻头


　　大““钻头篡
　　
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条