在绘制机械设备的零件图和装配图时，会遇到各种形状的剖视图。

Section views in various shapes appear when we construct detail and assembly drawing for the mechanical devices.

youdao

在绘制机械设备的零件图和装配图时，会遇到各种形状的剖视图。

Section views in various shapes appear when we construct detail and assembly drawing for the mechanical devices.

youdao