1) drill lip angle
![点击朗读](/dictall/images/read.gif)
钻刀角;钻口角
2) bevel wheel drill
![点击朗读](/dictall/images/read.gif)
角钻
3) included angle of teeth
![点击朗读](/dictall/images/read.gif)
钻头齿间铣刀角
4) Drill-point angle
![点击朗读](/dictall/images/read.gif)
顶角/钻尖角
5) elevation bore
![点击朗读](/dictall/images/read.gif)
仰角钻孔
1.
High position bores and elevation bores methane drainage technique can prevent gas problem successfully.
采用高位钻孔和仰角钻孔抽放瓦斯技术,有效地防止了瓦斯超限。
6) drill clearance
![点击朗读](/dictall/images/read.gif)
钻头后角
补充资料:钻刀
1.以刀穿刺。指歃血盟誓。
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