The paper systematically analyzes the feature and changes of agro-products export in terms of commodities type, regional distribution, market distribution and major exporters.
文章系统分析了农产品出口的商品结构、地区结构、市场结构以及出口经营主体结构的特征与变化。
The exchange of commodities is the major cause for the output and input of energy and material between agro-ecosystems.
商品交换是造成农业生态系统间的能量和物质输出及输入的主要原因。
The exchange of commodities is the major cause for the output and input of energy and material between agro-ecosystems.
商品交换是造成农业生态系统间的能量和物质输出及输入的主要原因。
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