On this basis, a practical simple way to construct by the conical curves the common tangent circle is presented.

在此基础上，提出了简便、实用的圆锥曲线公切圆作图法。

youdao

On this basis, a practical simple way to construct by the conical curves the common tangent circle is presented.

在此基础上，提出了简便、实用的圆锥曲线公切圆作图法。

youdao