国产一级免费电影,国产自产在线视频一区,国产一区亚洲,久久国产精品视频,日本美女天天操b,九色激情,成年轻人网站色直接看

Xinhua Headlines: Big data reshaping harvest for Chinese farmers

Source: Xinhua| 2018-11-29 19:12:09|Editor: Li Xia
Video PlayerClose

Xinhua Headlines: Big data reshaping harvest for Chinese farmers

A technician explains the results of soil examination and the corresponding fertilizing plan to a farmer in Feixi County of Hefei, east China's Anhui Province, April 2, 2018. (Xinhua/Liu Junxi)

   Prev 1 2 3 4 5 6 7 8 Next  

KEY WORDS: farmer
EXPLORE XINHUANET
010020070750000000000000011100001376400651