三元结构农业生产体系 tri-elements structure in the agricultural production system
农业生产体系越集约，其单位产品所需要的能量就越多。
The more intensive the agricultural production system, the greater the energy required per unit of productions.
当前高度技术化的农业生产体系是美国环境变劣的一个主要根源。
The current "high-tech" agricultural production system is a major source of environmental degradation in the United States.
退出的农业人口和转型的农业生产体系均需要强有力的工业支撑。
Both the agricultural population withdrawing from the land and the transformed system of agricultural production need powerful support of industry.
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