How to make a secret weapon for desertification control? Follow Xinhua's Cheng Nan to a factory in Dingxi, China to check it out.
Vlog: How to make a secret weapon for desertification control?
Source: Xinhua| 2020-06-04 15:27:58|Editor: huaxia
How to make a secret weapon for desertification control? Follow Xinhua's Cheng Nan to a factory in Dingxi, China to check it out.
