我们也知道了，如何将各个偏导组合成一个梯度向量。
And we have learned how to package partial derivatives into a vector, the gradient vector.
本文采用理论分析、数值模拟与实验相结合的方法对合成射流流动机理及推力向量控制中的应用进行研究。
In this paper, the flow mechanism and the applications of thrust vectoring using synthetic jet are studied in theory, numerical simulation and experiment.
以赫芝偶极之电磁场合成任意长度偶极天线在球面上电磁功率密度流之时变玻因亭向量。
The near and far electromagnetic field are synthesized by summation of the electromagnetic field of short current segments or Hertz dipoles.
提取出能较好反映出桥梁结构状态的特征参数，组合成特征向量。
Characteristic parameter is extracted, which can better reflect bridge structure state, combining it into the feature vector.
首先应用小波包变换对结构振动测试数据进行特征提取，通过不同传感器特征向量的合成完成数据层融合；
Firstly, Wavelet packet transform is introduced to extract features of vibration measured data and information fusion of data layer is conducted by assembling feature vectors of different sensors.
首先应用小波包变换对结构振动测试数据进行特征提取，通过不同传感器特征向量的合成完成数据层融合；
Firstly, Wavelet packet transform is introduced to extract features of vibration measured data and information fusion of data layer is conducted by assembling feature vectors of different sensors.
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