After the subroutine parameter is given the origin number, the plotter controlled by computer can draw out automatically extension line, dimension line, arrowhead and write dimension figures.
当给子程序的参数赋以初值后,由计算机控制自动绘图机绘制出尺寸界线、尺寸线、箭头和注写尺寸数字。
2
The graph plotter is an in common use equipment to output graph, and it can conserve pattern on plot paper which make by computer.