首页 / 官方藏书 / The Draughtsman's Handbook of Plan and Map Drawing / Including instructions for the preparation of engineering, architectural, and mechanical drawings. / To draw lines which shall be Radii of a circle, the centre being inaccessible.

To draw lines which shall be Radii of a circle, the centre being inaccessible.

The Draughtsman's Handbook of Plan and Map Drawing / Including instructions for the preparation of engineering, architectural, and mechanical drawings. · George G. André · 第 2 / 87 章