它提供了一个用户界面上输入三角形的角和边的长度。

It provides an interface for user to enter the angles and length of the edges directly on the triangle.

youdao

它提供了一个用户界面上输入三角形的角和边的长度。

It provides an interface for user to enter the angles and length of the edges directly on the triangle.

youdao