1) drill jig for pneumatic hammer valve
气动锤阀钻模
2) compressed air hammer drill
气动锤钻
3) air-driven hammer drill
风动气锤钻
4) drill jig for air intake valve
进气阀钻模
5) air/fluid powered DTH drilling
气动/液动潜孔锤钻进
1.
cone bit/disc cutter drilling method, percussive drilling method (no circulation and reverse circulation) and air/fluid powered DTH drilling method, is described with concrete proposals initiated for increasing the technical level of large diameter rock socket drilling.
分析了大口径嵌岩钻进面临的主要技术难点，并对目前国内常用的３种大口径嵌岩钻进方法牙轮／滚刀钻进法、冲击钻进法（包括无循环和反循环）和气动／液动潜孔锤钻进法的技术现状作了介绍，提出了提高我国大口径嵌岩钻进技术水平的建议。
6) impactor valve
模锻锤阀
补充资料：揲揲锤锤
1.象声词。促织的叫声。
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