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- second principal component 第二主成分
- Any alloy whose principal component is copper. 主要成分是铜的合金。
- Mar. 01, 1957, Mr. Sey-Sei Liau was appointed the second principal. 民国五十一年三月十五日市府委派廖学湿先生为第二任校长。
- Plotting the first principal component against the second for all genotypes and environments results in a GGE biplot. 按照第一和第二主成分值将各品种和各地点放到一个平面图上即形成GGE叠图。
- 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 analysis of the second -derivative difference spectrum data was accomplished with multilinear regression (MLR) and principal component regression (PCR). 用多元线性回归(MLR)和主成分回归(PCR)分析了数据。
- The second principal characteristics were the units volume weight of fruit, units volume weight of stem, stem color and pericarpic percentage. 果实容重、茎藤容重、茎藤色泽及果皮率为第二主成分要素，为比较重要的选择性状；
- 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。
- 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。
- 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。
- Principal factor analysis shows th at the first and the second principal factor can classify genus Glycine into two gr oups which represent subgenus Glycine and subgenus soja. The results of UPGMA indic ate that G. SSR等位基因的主成分分析结果表明，大豆属中的Glycine亚属和Soja亚属的分类界限是比较明确的，利用第一主成分和第二主成分可较明显地区分开Glycine亚属和Soja亚属。
- 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。
- 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。
- Keywords: design hyetograph, principal components analysis, cluster analysis. 关键词：设计雨型、主成分分析、群集分析。
- 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。
