针对物镜筒注塑件，设计了一种内收式二瓣牙内螺纹模具结构。
Designed a injection mold with two teeth threaded core-pulling mechanism for the objective slide.
本文从其光学方案的选择、变倍方式的选用，变焦镜筒的结构设计多方面进行了深入阐述和研究。
In this paper, the selection of optical scheme, the choose of zoom mode and the mechanical design of the zoom cone have been deeply expounded and studied.
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.
应用推荐