The finite element model of hydro - mechanical deep drawing is established based on the commercial software DYNAFORM - PC. 采用商用有限元软件DYNAFORM-PC,建立了筒形件液压 - 机械拉深过程数值模拟模型.
This ribald ad by Durex works the participation angle.杜蕾斯的这个猥琐的广告还挺注重用户参与的.According to a 2005 survey by Durex, the condom maker, the global average age was 17.3.据安全套制造商杜蕾丝公司2005年的一项调查, 全球初次性行为的平均年龄为17.3岁.Durex Play Feel...
He was a stern critic but an extremely kindly man.他是个苛刻的批评家,但却是个非常善良的人。The tug crossed our stern not fifty yards away.拖船擦着我们的船尾开了过去,距离不到50码。We remember our mother's stern instructions not to boast.我们谨记母亲不许我们在人前炫耀的严厉...
Original plate: Relief printing plate produced bu 7 photomechanical etching as distinct from electrotyping.原身版: 用照相晒版蚀刻方法造成的凸版.有别于电镀版.The process of preparing a printing surface for electrotyping engraving on a wax - coa...