首页 / 官方藏书 / Mechanical Drawing Self-Taught / Comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing; together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers / EXAMPLES IN BOLTS, NUTS, AND POLYGONS.

EXAMPLES IN BOLTS, NUTS, AND POLYGONS.

Mechanical Drawing Self-Taught / Comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing; together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers · Joshua Rose · 第 4 / 12 章