STUDIE OF KEY TECHNIQUE FOR NEGATIVE IONS DETECTING BY THERMO IONIZATION MASS SPECTROMETER(TIMS)是什么意思_STUDIE OF KEY TECHNIQUE FOR NEGATIVE IONS DETECTING BY THERMO IONIZATION MASS SPECTROMETER(TIMS)在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句