1) bottom-discharge bit
![点击朗读](/dictall/images/read.gif)
底冲式钻头
2) shot bit
![点击朗读](/dictall/images/read.gif)
冲击式钻头
3) bottom jet flow bit
![点击朗读](/dictall/images/read.gif)
底喷分流式钻头
1.
Based on application of HZ308 multi-function core barrel in altered rocks and quartz vein gold ore forrnation measures ard proposed for preventing core blockage and wear due to using of the bottom jet flow bit.
通过HZ308多功能取心钻具在蚀变岩型和石英脉型金矿地层的应用,提出了防止底喷分流式钻头堵心、减少其损耗的措施。
4) mechanical under-reamed bore
![点击朗读](/dictall/images/read.gif)
机械式扩底钻头
5) pedestal drill
![点击朗读](/dictall/images/read.gif)
扩底钻头
6) flatter face bit
![点击朗读](/dictall/images/read.gif)
平底钻头
补充资料:标准操作冲击电压波形(见冲击电压发生器)
标准操作冲击电压波形(见冲击电压发生器)
standard switching impulse voltage waveform
b .oozhun CooZuo ChongJld,onyo boxlng标准操作冲击电压波形(standard switchingimpulse voltage waveform)见冲击电压发生器。
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