1) prepunched hole
预穿孔
2) pre-punch
预先穿孔
3) prepunched
预先穿孔的
4) prepunched card
预先穿孔的卡片
5) Perforation
[英][,pɜ:fə'reɪʃn] [美]['pɝfə'reʃən]
穿孔
1.
Study on Mechanics Character of Perforation Fiber Board;
穿孔纤维板力学特性研究
2.
The application of pedicled buccal fat pad graft for repairing perforation after palatorrhaphy.;
颊脂垫瓣在腭裂术后穿孔修补术中的临床应用
3.
Laparoscopic repair of acute perforation for gastroduodenal ulcer;
腹腔镜胃十二指肠溃疡修补术治疗急性胃十二指肠溃疡穿孔
6) piercing
[英]['pɪəsɪŋ] [美]['pɪrsɪŋ]
穿孔
1.
Experiment on Piercing of Shell for Large-sized Stainless Steel Tube;
大直径不锈钢管坯的穿孔试验
2.
With a view to establishing the mechanism of center crack during two cross roll piercing, the distribution and development of deformation and stress in tube rounds were studied through the use of FE code MARC/Autoforge.
为了分析二辊斜轧穿孔时圆管坯中心金属的断裂机制 ,确立穿孔变形的工艺实质 ,用MARC/ Autoforge软件研究了圆管坯斜轧时的应力、应变场及其发展。
3.
Used each superior equipment and both solved the key of large-sized stainless steel cold-drawn seamless tube-large-sized stainless tube blank and hot-piercing by Taiyuan I&S Co.
太原钢铁集团公司和成都无缝钢管公司双方利用各自装备优势,通过合作解决了生产大口径不锈钢冷拔无缝钢管的关键——大型不锈钢管坯和热穿孔。
补充资料：成都无缝钢管厂管坯在菌式穿孔机上穿孔
成都无缝钢管厂管坯在菌式穿孔机上穿孔
成都无缝钢管厂管坯在菌式穿孔机上穿孔
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条