Objective: to study synthetic development and utilization of every component of haw to exploit its new medical value.

前言：目的：综合开发利用山楂中各种成分，开发山楂新的药用价值。

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Conclusion Practice presents that principal component analysis and factor analysis both are suitable for synthetic evaluation of hospital management quality.

结论理论和实践表明主成分分析与因子分析法适宜于客观地综合评价医院管理工作质量。

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Using the methods of Principal Component Analysis (PCA) and the Analytical Hierarchy Process(AHP), the paper proposes the synthetic evaluating model of PCA with weighted variables by AHP.

通过综合运用主成分分析和层次分析方法，建立系统综合评价的AHP变量加权主成分分析模型。

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Lately, weather irregularities have affected even turpentine, which is a foundational component of synthetic scents.

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Turin identifies the "official birthday of fragrance chemistry" as the discovery of the synthetic simulation of coumarin, an essential component of the tonka bean, prized for its sweet, nutty and smoky fragrance, in 1868.

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