| 摘要 |
This novel template with novel functions enables the user to draw and create geometric figures and all kinds of angles, rapidly and with precision. It is characterized in that it comprises a rotary circle with template holes, separated from one another by equal spaces superposed on radial lines, with serrated circle templates with sizes of between 1/7th and 1/10th of the dimensions of the general frame, and it has a transverse slot running from one corner to the other, and the slot also passes through the rotary circle over only half of the diameter thereof, where there is a measurement checker. |
