It is rather difficult to aggregate individual preference into group's when we are making group decision with multiple objectives.

由于决策者的个人偏好效用难于进行比较和归并，使得多目标群决策问题成为难题。

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Mineral resources planning is a decision problem with multiple objectives and multiple phases.

矿产资源规划是一个多阶段多目标的决策问题，具有动态规划的特性。

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At last, this paper makes multiple objectives decision to irrigation schemes with fuzzy synthetic judge and group decision.

最后，使用模糊综合评判和群决策的方法对灌溉方案进行多目标决策。

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