He was visiting professor of geology at the University of Georgia.

他曾是佐治亚大学的地质学客座教授。

In addition, he served as a visiting professor at several American universities.

除此之外，他还是几所美国大学的访问教授。

Visiting professor at the School of Shaoyang.

邵阳学院客座教授。

USA east and west university visiting professor.

美国东西方大学客座教授。

I want to invite you to be our visiting professor.

我想邀请您做我们的客座教授。