After dinner, Zhou Xiaochuan saw that it was still early, thought about it, said hello and went out.

The purpose is naturally to find some information.

learn it.

I rode my bike to the University of Science and Technology of China and the provincial library, and found many useful books among ordinary books and banned books that were sealed up.

Geophysics, geology, geography, meteorology, surveying and mapping.

There are several hundred volumes in total.

including various

The content of this chapter is being updated...