Researcher Lu Kun takes samples at a test field of Chongqing engineering research center of rapeseed in Chongqing, southwest China, March 5, 2020. Agricultural experts and students at the research center make a research work as the rapeseeds here enter the flower season. (Xinhua/Wang Quanchao)
Agricultural experts make research work in Chongqing
Source: Xinhua| 2020-03-06 07:52:26|Editor: huaxia
