Based on credibility theory and two-stage fuzzy optimization method, this paper presents a new class of fuzzy production planning model.

基于可信性理论和两阶段模糊优化方法，提出一类新的模糊生产计划模型。

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For the capacity planning problem at each level, a two-stage mathematical programming model is presented.

针对各阶层的产能规划问题，提出两段式产能规划数学模型。

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Appearance quality was affected mainly by booting stage for the two varieties. Saving water planning should stared with choice of varieties.

对两个品种来说长穗期是影响外观品质的主要水分敏感期，节水栽培应从品种选择入手。

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