These features are directly related to bone structure, therefore, can be used to produce a summary index to predict the fracture risk.

由于这些纹理特征与骨结构直接相关，因此可用于预测骨折风险。

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This paper recommends the use of the geometric mean of the age-specific mortality rates as a summary index of mortality. This index is intuitively simple, easy to calculate, and it ne...

本文以年龄别死亡率几何均数作为年龄别死亡率的一个概括指标，优点是直观简单、易计算、不需要标准人口、不同人口可直接比较，并可反映年龄别死亡率的指数类型。

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Summary: Adding an index to a DB2 database is often the best way to improve query performance, but the addition can have trade-offs.

简介：向DB 2数据库添加索引通常是改善查询性能的最好方法，但添加索引也是有代价的。

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