According to which, many kinds of important surfaces can be structured. As one of the applications in transmission area, the principle of Bertrand conjugating surface is studied.

• 作为白川德曲面在高副传动领域的应用与延伸，论文研究了白川德共轭曲面的基本原理，在此基础上研究了覆盖各种传动形式的法向圆弧齿轮传动的一般原理。