Mean velocity profile, turbulence intensity profile, integral scale and wind spectra are the most fundamental characteristics that describe the atmospheric turbulent boundary layer flow.
平均速度剖面，湍流度剖面，积分尺度和风谱是反映大气湍流边界层流动的四个最基本的因素。
However, the mean vertical wavenumber spectra reveal a significant seasonal variation: the mean spectrum in summer has saturated features, whereas the mean spectrum in winter has unsaturated features.
然而平均垂直波数谱显示了明显的季节变化，在夏季，平均谱具有饱和特性；在冬季，平均谱具有非饱和特性。
When the random processes that meet certain power spectra are simulated by digital filters to white noise, the step length of the filters affects response mean-square values and correlation functions.
当用计算机模拟满足一定功率谱规律的离散数字随机信号时，通常是对伪随机白噪声离散数字信号进行数字滤波来模拟。
According to its definition, the standard response spectrum only reflects the mean property of response spectra of structures.
根据其定义，标准反应谱仅仅反映了结构反应谱的均值特性。
The MLR mathematical model that established with orthogonal signal correction plus first derivative and mean centre preprocessed spectra shows the best result for glucose and fructose.
研究结果表明，原始光谱经均值中心化、一阶微分和正交信号校正预处理后，运用多元线性回归法所建葡萄糖和果糖定量分析模型最优。
We introduce an optimally-modified log spectral amplitude estimator, which minimizes the mean-square error of the log spectra for speech signals under signal presence uncertainty.
引入了最佳修正短时对数谱估计，能在信号存在的不确定性下最小化语音信号对数谱的均方误差。
It is proved that the model of wind wave spectra with three parameters is reasonable. At the mean time, it is also proved that the relationship between spectrum parameters and fetch is right.
经过实测数据的验证，证明了三参量谱谱形的合理性，同时也进一步证明了谱参量随风区变化关系的正确性。
The correspondence between the computed spectra by the model and the observed ones of annual mean temperature anomalies in the Northern Hemisphere from 1881 to 1980 is statistically examined.
文中应用响应谱的离散形式将模式谱的计算结果与北半球（1881—1980年）年平均温度距平序列的实际谱进行了统计检验，从而论证了随机模式模拟全球温度变化的适用性。
Then, the mean values and standard deviations of the maximum sliding displacement response of the structures are given, and the sliding displacement response spectra of the structures are drawn.
然后，给出了这种结构的最大滑移反应的均值和标准差，并给出了这种结构的滑移反应谱。
Then, the mean values and standard deviations of the maximum sliding displacement response of the structures are given, and the sliding displacement response spectra of the structures are drawn.
然后，给出了这种结构的最大滑移反应的均值和标准差，并给出了这种结构的滑移反应谱。
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