基于由此获得的累计使用数据而选择的退化系数乘以视频数据而获得已校正视频数据。
A degradation coefficient selected based on the thus obtained accumulated usage data is multiplied by video data to obtain corrected video data.
研究结果表明：高层建筑结构抗震设计中高振型的影响不容忽视，在底部剪力和顶端位移误差小于5%的情况下，累计质量参与系数应大于90%；
The decision principle of mode number is: when the error of base shear and top displacement are both below 5%, the sum of modal participating mass ratio should exceed 90%;
该方法的特点是极化散射矩阵和终端反射系数可分解后分别计算，便于叠加各种进气道构型和不断积累计算模型。
The polarization scattering matrix of the target is matched with eight specific scatterers, and a classification algorithm is presented based on the match angle to classify the targets.
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