共轴性...

centration的音标：centration的英式发音音标为：[sen'treɪʃən]centration的美式发音音标为：[sen'treɪʃən]...

The soft - sensing prediction model - centration of citric double - effect evaporator process is founded on the PCA - BP neural network.笔者采用PCA -BP 神经网络建立了蒸发过程出料液浓度软测量预测模型....