1) eletric hammer drill
电锤钻头
2) DTH hammer bit
潜孔锤钻头
1.
The process,impacting concrete slab with tungsten carbide button of DTH hammer bit,was simulating calculated by non-linear finite element software LS-DYNA3D on concrete model,the effects of different target mesh sizes of concrete on impaction force,impact velocity and penetration depth was discussed.
潜孔锤钻头冲击钻进的过程是一个高度非线性、大变形、破坏的过程。
3) bit rams
钻头整形锤
4) cylindrical type electric hammer drill
筒型电锤钻
5) solid electric hammer drill
实心电锤钻
6) cross type electric hammer dril
十字型电锤钻
补充资料：揲揲锤锤
1.象声词。促织的叫声。
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参考词条