三(二)维坐标快速输入+出CAD图,+CAD取三维坐标，简便易懂，方便阅读，无密码-Three (two)-dimensional coordinate input fast+ CAD drawings,+CAD take a three-dimensional coordinates, simple and easy to understand, easy to read, no password

cad中使文本左对齐，快速使文本左对齐，便于编辑说明-cad to make the text left-justified text alignment, fast

快速按比例绘制通信线路路由图，标记、设备等。(Fast plotting the route map of the communication line)

对CAD图形面积求和，方便快捷，希望为你的绘图工作带来便利(It is convenient and fast to sum the area of CAD drawing. I hope it will bring convenience to your drawing work)