目的比较桡尺骨皮质分层指数与SPA骨矿定量法诊断骨质疏松症的价值。

Objective Comparing value of single photon absorptionetry (SPA) of bone mineral density (BMD) with of laminated cortex index of radius and ulna in diagnosing osteoporosis.

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采用双曲线和指数曲线两种拟合方法对实测数据进行了曲线拟合计算，同时采用分层总和法对路基总沉降进行了计算。

The hyperbolic curve method and the exponential curve method are used to forecast embankment settlement of the highway around Harbin city, meanwhile total embankment settlement is calculated.

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在此基础上，采用分层抽样技术和综合评价法，构建了基于车辆行驶时间（VHT）加权的分层次交通拥堵指数（TCI）模型。

Then, a weighted vehicle-hours-traveled (VHT) based traffic congestion indices (TCI) model was developed by using stratified sampling and comprehensive evaluation method.

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