The theory of the photoacoustic (PA) phase has b een studied.The PA phase spectra of rare earth complexes with dibenzoylmethide h ave been explained basing on the theory.是什么意思_The theory of the photoacoustic (PA) phase has b een studied.The PA phase spectra of rare earth complexes with dibenzoylmethide h ave been explained basing on the theory.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句