This article presents the technique and experience of EXCEL and CAD application in data preparations, calculations and steel structure shop drawings production, which can be a reference for designers.
介绍在钢结构加工设计中如何用EXCEL进行数据准备和计算以及用CAD绘图的技巧和经验，供设计人员参考。
The design of the structure of Caseegrain drawtube in space remote instrument was introduced. The product model was constructed using 3-d CAD technique.
介绍了空间遥感仪器中卡塞格伦镜筒的结构设计，利用三维CAD技术构建了产品模型。
The design of the structure of Caseegrain drawtube in space remote instrument was introduced. The product model was constructed using 3-d CAD technique.
介绍了空间遥感仪器中卡塞格伦镜筒的结构设计，利用三维CAD技术构建了产品模型。
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