乳制品进口对中国不同规模奶牛养殖效率的影响 |
魏艳骄,朱晶 |
Effects of dairy imports on the efficiency of cow farming operations of different scales in China |
Yanjiao WEI,Jing ZHU |
图2 2002—2015年中国奶牛养殖规模结构 |
Figure 2 Scale structure of China’s cow farming, 2002-2015 |
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