C334 The Gobi Desert 25

According to the research center's plan, the B12 area Qin Fann and Zhongda were in was the last area of the B area. This area was used for research.

The passageways of the Crystal Mine could be divided into two types. One was the upper and lower passageways. From the highest level of Zone A to the lowest level, only a small area of Zone C was dug.

The other was the left and right passageways