1) chopping bit
冲魂钻头
2) disk bit
盘状冲魂头
3) chopping bit
冲击钻钻头
4) punch
[英][pʌntʃ] [美][pʌntʃ]
眼钻，冲头
5) chisel bit
冲唤钻头
6) impact bit
冲击钻头
1.
But the matching impact bits often dropped off from the pneumatic hammers and led the well accident caused by complex factors.
但是,空气锤、特别是配套冲击钻头断脱导致的井下事故时有发生,影响因素极为复杂。
补充资料：钻眼
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