HEA|  |01929nam0 2200325   45  
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010|  |□d￥0.38
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100|  |□a20010123d1977    em y0chiy0121    ea
101|0 |□achi
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200|1 |□a耕作改制夺高产□Ageng zuo gai zhi du-
   |  |o gao chan□f甘肃省农业科学院编
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