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- principal component number 主成分数
- Any alloy whose principal component is copper. 主要成分是铜的合金。
- Slang had been a principal component of his rattling. 他唠叨的主要是一些假语村言。
- RPS is the principal component of rchmannia glutnosa. 地黄多糖是地黄的主要组分。
- The new neural network prediction model of water level is established based on the principal component analysis (PCA). 采用人工神经网络与主分量分析相结合的方法，建立了梧州水位的预报模型。
- KPCA extracting principal component with nonlinear method is an improved conventional PCA. 摘要核主成分分析方法是主成分分析的改进算法，其采用非线性方法提取主成分。
- In time domain, feature parameters of the step response are compressed using principal component analysis (PCA). 从时域角度,利用主元分析压缩电路阶跃响应的特征参数,从而简化了神经网络结构并提高了网络训练速度,提高了诊断效率。
- Subject the matrix to principal components analysis. 主成分分析法。
- Principal Components: Aluminum Tripolyphosphate and modifiers. 主要成分：三聚磷酸铝及其改性物质。
- Statistical Process Control (SPC),Principal Compon ent Analysis (PCA) and Singular Value Decomposition (SVD) are introduced to det ermine APC opportunity and then APC structure. 这一研究对于开发和应用好先进控制技术具有重要的意义。
- SPCA arithmetic has smaller number of spectral principal components and greater variance contribution than PCA by choosing proper kernel functions and parameters. 当选取合适的核函数和参数时，谱主成分的个数比主成分的个数要小且累积方差贡献率要大。
- A novel method of car license plate extraction based on Probabilistic Principal Component Analysis (PPCA) is presented. 摘要提出了一种新颖的采用概率主成分分析的车牌提取方法。
- Based on ORL face database, recognizes correlation coefficients of principal component extracted by KPCA. 基于ORL人脸库，识别核主成分分析提取出的主成分的相关性系数。
- Result indicates that Fuzzy Principal Component Method can improve multicollinearity of Least Squares Estimate. 结果表明,这种方法改善了最小二乘回归中的多重共线性问题,具有实用价值。
- The mathematic principle of principal component analysis method (PCA) lies in coordinate conversion. 主分量分析法（PCA）的数学原理是坐标转换，它将原变量变换成互不相关的变量。
- An ocean is a major body of saline water, and a principal component of thehydrosphere. 一边是蓝色的海洋，一边是黄色的沙漠。保护环境，人人有责。
- Keywords: design hyetograph, principal components analysis, cluster analysis. 关键词：设计雨型、主成分分析、群集分析。
- This paper presents an algorithm about SAR image change detection based on Principal Component Analysis(PCA). 该文提出一种基于主分量分析(PCA)的SAR图像变化检测算法。
- The dimension of MTS database was reduced firstly by Principal Component Analysis (PCA). 采用主成分分析方法对MTS数据进行降维处理；
- EOF, EOF procedures, principal component analysis procedure, suitable for vector field orthogonal decomposition. 经验正交函数，EOF程序，主成分分析程序，适合做向量场的正交分解。
