钻孔装埋,打埋头孔;
埋头孔,暗钉眼;
Application of Floating Positioning Countersink Drill
定位浮动式锪刀的应用
Improvement and optimization of titanium alloys countersink drill
钛合金锪钻改进与优化设计
Drill and countersink the holes to keep wood from splitting.
钻和锪孔,以保持木材的从分裂.
简答网 · 英语词汇
简答网 · 高考英语