Determination of organochlorine pesticides in river water by gas chromatography-negativeion chemical-ionization mass spectrometry using large volume injection是什么意思_Determination of organochlorine pesticides in river water by gas chromatography-negativeion chemical-ionization mass spectrometry using large volume injection在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句