1) pierced earring
穿孔式耳环
2) Ear piercing
穿耳环孔
3) Tympanic member perforation
耳膜穿孔
4) trepan
[英][tri'pæn] [美][trɪ'pæn]
环钻穿孔
5) punctured torus
穿孔环面
6) Cone roll piercing mill
菌式穿孔
1.
To get the law of metal deformation of the work piece being rolled with the cone roll piercing mill, rolling jamming experiment and measurements of wall thickness of different work-piece sizes were conducted, based on which law of the wall thickness variation is calculated and analyzed.
为研究菌式穿孔机穿孔时轧件金属的变形规律,进行了穿孔轧卡试验及变形区各断面轧件壁厚测量,计算分析了壁厚变化规律。
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