METHODS 1HNMR spectra of ether-extracts of samples were examined, and 1HNMR spectra were translated to a digital matrix, then PCA and PLS-DA were used to analyze the digital matrix.是什么意思_METHODS 1HNMR spectra of ether-extracts of samples were examined, and 1HNMR spectra were translated to a digital matrix, then PCA and PLS-DA were used to analyze the digital matrix.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句