为验证本文研究的塔式起重机计算机辅助设计平台的正确性，对某厂生产的5012塔机的塔身进行了再设计。
For verifying accuracy of the investigative platform, we designed the tower crane mast again about the type of 5012.
根据模型，基于VB 6.0平台设计了连续采煤机滚筒的计算机辅助设计系统。
A computer auxiliary design system of continuous miner cutting drum is designed based on VB6.0 and the mathematical models.
以三维设计软件MDT为平台，对推土机转向离合器的计算机辅助设计系统的构成和功能特点进行研究，并分析使用这种系统的现实意义。
Computer aided design of steering clutch in the bulldozer based on three-dimensional design software MDT was studied in theories. And the realism significance of this method was discussed.
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