But there are few decision support systems of modulation and optimization in agricultural structure, especially in the generalized agriculture.
但是对农业，特别是广义的农业的结构优化、调整的决策支持系统却不多见。
However, the structure adjustment and system optimization should be based on the integral understanding of the agricultural production system, and its regularity of systematic structural evolution.
农业结构的调整，必须建立在对系统整体认识的基础上，必须符合系统结构本身的演变规律。
It is the premise to realize the structure optimization of agricultural machinery and equipment by analyzing the need of crops through all production processes.
分析农作物各个生产环节所需农机装备数量是实现农机装备结构优化的前提。
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