中世纪英格兰的乡村体制是农民生活的制度空间。
The rural system in medieval England is system space of peasant's life.
提出了一种以GIS为平台，遗传算法为优化模型的县域种植制度空间布局优化方法。
The authors put forward a method of cropping system spatial distribution optimization based on GIS and gene algorithm.
内容提要制度空间与生存逻辑决定着农民行为的理性选择，也制约着经济和社会的变革。
System space and survival law decided farms rational choice and restricted economic and social evolutive direction.
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