... 金属结构厂 metal structures plant 金属结构加工 metal structure processing 金属结构掩蔽室 quonset hut ...
基于8个网页-相关网页
Development Process of network textbook on "Sheet Metal forming" is described, and problems of design processing in structure, content, aiming and feedback are analysed in this paper.
介绍了“冲压工艺学”网络教材的开发过程，对其结构、内容、导航、反馈等做了分析。
youdao
应用推荐
模块上移
模块下移
不移动