| 摘要 |
<p>The drawing compass allows the tracing of circles of any desired diameter, and comprises a bar (2) assembled with other components. The bar can be arranged to slide in a body (1) under the action of a knurled knob (3), and with a pivoting bracket (8) at one end for an accessory (16), the pivoting movement being limited by a stop (6), and the bracket being spring-loaded into position.</p> |
