凹

hollowing block

凹模

凹座 recess | 凹模 hollowing block | 凸缘 flange

valleys

凹处

Valley Overlap 凹处重叠距离 | Valleys 凹处 | Variable 可变的

Revolutions

刀具在凹槽底停留指定的圈数

Seconds:刀具在凹槽底停留指定的时间. | Revolutions:刀具在凹槽底停留指定的圈数. | Groove Walls选项组用来设置当挖槽侧壁为斜壁时的加工方式:

female die, female mold, negative mold

凹模

凹模固定板 retainer plate | 凹模 female die female mold negative mold | B 备 件 spare parts

Fillister head rivet

凹槽圆头铆钉

Filling valve 加注阀,加水阀 | Fillister head rivet 凹槽圆头铆钉 | Fillster head screw 凹头圆螺钉

gap lathe

凹口车床,过桥车床

凹口床台 gap bed | 凹口车床,过桥车床 gap lathe | 开口冲床 gap press

concave gratings

凹光栅

concave grating 凹面光栅 | concave gratings 凹光栅 | concave holographic grating 凹全像光栅

intaglio printing paper

凹版印刷纸

Letterpress printing paper 凸版印刷纸 | Intaglio printing paper 凹版印刷纸 | Gravure roll coater 凹版滚式涂布器

steel engraver's paper

钢凹版印刷纸

steak interleaving paper 肉块间隔纸 | steel engraver's paper 钢凹版印刷纸 | steel engtaving paper 钢凹版印刷纸

hexagon socket screw

六角凹头螺钉

hexagon slotted nut 六角有槽螺母 | hexagon socket screw 六角凹头螺钉 | hexagon socket set screw 六角凹头固定螺钉

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