Oracle Learning Resources, including the ROWID of the concept, the concept of indexing, unique indexes, composite indexes, bitmap indexes and function-based indexes.

Oracle学习参考，包括ROWID的概念、索引的概念、唯一索引、组合索引、位图索引和 基于函数的索引等。

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Therefore, the difficulty coefficient of road administration is determined by calculating the group utility function based on the normalized weights, utility function of every expert and the indexes.

用归一化的专家权重、专家个人效用函数的权重以及标准化后的指标，计算群效用函数，即可确定公路路政管理难度系数。

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The forecast model of Mean Generation Function (MGF) based on spring drought indexes was able to predict the drought occurrence for the East Gansu Province.

最后建立了甘肃东部春播期干旱指数的均生函数预测模型。

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