steam-motivated diamond drill
蒸汽驱动的金刚石钻
a power shovel that is driven by steam.
用蒸汽驱动的动力铲。
diamond content
钻头上金刚石的克拉数
Study on the Automatic Laser Welding System of Diamond Core Drill Bit;
自动化金刚石钻头激光焊接系统的研究
Experimental study of diamond impregnated drilling bit enhanced with CVD diamond pins
CVD金刚石条强化孕镶金刚石钻头的试验研究
A form of opaque or dark-colored diamond used for drills.
墨金刚石一种不透明的或深色的钻石，用作钻（头）
Chip Removal Regularity and Bit Face Shape Selection in Impregnated Diamond Bit Drilling
孕镶金刚石钻头的排屑规律与钻头唇状选择
STUDY ON THE NEW METHOD OF DRILLING CONTROL OF IMPREGNATED DIAMOND BIT
孕镶金刚石钻头钻进控制新方法的研究
A great collector of gems and diamonds---you ought to see his fingers ...."
他收藏的宝石金刚钻！ 只看他两只手——”
diamond pattern
钻头金刚石颗粒的排列型式
pack-sack diamond drill
可背运的轻便金刚石钻机
machine set bit
机镶细粒金刚石钻头
screw-feed diamond rig
螺旋给料式金刚石钻机
diamod-enhanced hammer bit
金刚石镶齿震击钻头
diamond-particle bit
潜铸型细粒金刚石钻头
insert polycrystalline diamond bit
聚晶金刚石镶齿钻头
insert natural diamond bit
天然金刚石镶齿钻头
polycrystalline diamond compact bit
聚晶金刚石复合片钻头