钻头

drill point gauge

钻头角度规

drill plough 犁播机 | drill point gauge 钻头角度规 | drill point grinder 钻头刃磨机

twist drill grinder

螺旋钻头磨床

twist drill 麻花钻 | twist drill grinder 螺旋钻头磨床 | twist drill milling machine 螺旋钻头铣床

drill point grinder

钻头刃磨机

drill point gauge 钻头角度规 | drill point grinder 钻头刃磨机 | drill point 钻针

drill shank

钻头卡

drill rod 钻杆 | drill shank 钻头卡 | drill sharpener 钻头磨尖器

drill sharpener

钻头磨机

"drill rod","钻杆,精制钢杆" | "drill sharpener","钻头磨机" | "drill sleeve","钻头套筒"

drill sleeve

钻头套筒

"drill sharpener","钻头磨机" | "drill sleeve","钻头套筒" | "drill socket","钻头套座"

drill socket

钻头插口

drill sleeve 钎套 | drill socket 钻头插口 | drill speeder 钻头增速器

core drilling bit

取心钻头

coring drill 取心钻具 | core drilling bit 取心钻头 | core bit 取心钻头

drilling bit, bit

钻头

钻铤卸荷槽||"stress relief groove, drill collar groove" | 钻头||"drilling bit, bit" | 钻头保护器||bit protector

flat-faced bit

平端面金刚石钻头

flat-face bit ==> 平面金刚石钻头 | flat-faced bit ==> 平端面金刚石钻头 | flat-faced cathode ray tube ==> 平板荧光屏阴极射线管

colonial rule：殖民统治

colonial protectorate;殖民保护地;殖民被保护国;; | colonial rule;殖民统治;; | Colonial Secretary;辅政司;;

matrimonial agency：婚姻介绍所

21 deep love 深沉的爱情 | 22 matrimonial agency 婚姻介绍所 | 23 lover,sweetheart 情人