【彩神APP 下载安卓app_彩神APP 下载安卓app官网】Experts introduce agricultural techniques to farmers in N China's Hebei
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Liu Zhongtang(2nd L), an agricultural technician tells the farmers about the planting techniques of wild cabbage in greenhouse in Shakouji Township of Weixian County, north China's Hebei Province, Dec. 26, 2017. (Xinhua/Mu Yu)