1.
paper tape puncher
纸带穿孔器纸带凿孔机
2.
The sorker was drilling.
此工人在用钻孔机钻孔。
3.
computerized embroidery punching machine
计算机化锈花穿孔机
4.
Using a drill, he bore a hole through the wood.
他用钻孔机在木头上钻了一个孔。
5.
boring machine for making drill holes in rock or coa
在岩石或煤上打孔用打孔机
6.
Perforator: Key board which produces prunched paper tape.
打孔机:把纸带打孔的键盘。
7.
cutting machine for rubber inner tube valve holes
橡胶内胎气门嘴孔挖孔机
8.
Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill
10MN立式穿(扩)孔机大直径扩孔头的改造
9.
tape reperforator
带式自动纸带穿孔机
10.
fully automatic reperforator switching
全自动复凿孔机交换制
11.
balancing centering machine
平衡-钻中心孔机床
12.
ROTR (Receive-Only Typing Reperforator)
收报专用打字穿孔机
13.
CO^2 laser perforator
二氧化碳激光穿孔机
14.
rotary rolling mill
蘑菇形轧辊的穿孔机
15.
Research on Mechanics of Charging Structure of Bottom Gas-Space in Deep-hole Blasting Engineering;
中深孔爆破孔底空腔装药机理的研究
16.
kelly for well-drilling machiens
旋转钻孔,钻井机用
17.
reeves electronic analog computer
穿孔电子模拟计算机
18.
continuous drying machine with a perforated drum
连续多孔圆筒烘燥机