basic design drawing

Sketch in drawing arts is called basic sketch and that in design arts is called design sketch.

绘画艺术中的素描称为基础素描，设计艺术中的素描称为设计素描。

The article introduces the basic idea and principle for the CAD system's design of the shaft fan's installation drawing in the coal mine.

文中介绍了煤矿用轴流式通风机设备安装布置图CAD系统设计的基本思想与原则，详细说明了图块的分解、绘制以及总图组装等问题。

Planar formation is to use the basic elements of dot, line and plane to satisfy the needs of design drawing according to the principle of formal art.

平面构成是按照形式美的法则，运用点、线、面的基本元素来处理设计所需要的图形。