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....
Gladys was crippled by polio at the age of 3.格拉迪丝3岁时因小儿麻痹症腿瘸了。Gladys had just gone into the kitchen.格拉迪丝刚进厨房。No doubt his old mother would now swallow her pride and go and live with Gladys.无疑，他的老母亲如今只能放下身价，去和格拉迪斯住在一起。Gla...
The Marshal stepped over the vacuum-cleaner and stumped out of the room.元帅迈过真空吸尘器，脚步沉重地走出了房间。He could hear the whirr of a vacuum cleaner.他能听到真空吸尘器的嗡嗡声。Nuclear power is cleaner than coal.核能比煤清洁。...
In April 1992 the Greek drachma was the only Community currency not yet part of the EMS exchange-rate mechanism.1992年4月间希腊的德拉克马是唯一一种还未纳入欧洲货币体系兑换机制的欧共体成员国货币。...