Design and development of the mechanical systems, compose schematic diagram; assembly drawing and part drawing; testing on production etc.
产品机械设备的设计开发，包括完成产品原理图、装配图、零件图的设计、产品零部件选型和测试等；
Using CAD software to draw a diagram of hydraulic system, hydraulic cylinder part drawing and assembly drawing of small excavator overall.
运用CAD软件绘制了液压系统原理图，油缸零件图和小型挖掘机的总体装配图。
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