LCD screen display, man-machine dialogue, graphic display interface.

液晶屏幕显示，人机对话，图形显示界面。

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This graphic database enables the CAD system to be set up as a well-defined organization, and also greatly helps improve the man-machine interface between the system and the designers.

阐明了图形数据库能使CAD系统真正地建立起来，并能更好地完善系统体制，从而有效地改善系统和设计者之间的人一机接口问题。

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