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秸秆分解剂营销推广带头人于双、武国富的事迹感人农民兄弟的心声:丰收果里有你的一半我们向第一线的技术推广人员致敬
Straw decomposition agent marketing leader in the double, Wu Guofu’s deeds Touching peasant brother’s voice: harvest your fruit half We salute the first-line technology extension staff