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1·And then, the author sets forth the frame of the CAD system of the Counterbalance Electric Forklift Truck, the main modules and the operation process.

然后，作者详细阐述了平衡重式蓄电池叉车CAD系统的框架结构、主要模块和工作流程。

2·Author studies the virtual manufacturing technology and we successfully develop a system of the performance of the counterbalance electric forklift truck.

然后，详细阐述实现虚拟叉车设计的关键部分——平衡重式蓄电池叉车总体性能参数设计系统。