本实用新型可根据所需绘制椭圆的长、短轴的长度直接在图纸上一次绘成。

The utility model can directly draw an ellipse for once on paper according to the lengths of the long shaft and the short shaft of the ellipse which is required.

youdao

本实用新型可根据所需绘制椭圆的长、短轴的长度直接在图纸上一次绘成。

The utility model can directly draw an ellipse for once on paper according to the lengths of the long shaft and the short shaft of the ellipse which is required.

youdao