短語詞組短語mass spectra spectroscopy 質譜分析accelerator mass -spectroscopy 加速器質譜分析helium -mass-spectroscopy leak detector 氦質譜檢漏儀Chemical Ionization Mass Spectroscopy 化學電離質譜gas chromatography mass spectroscopy 氣相色譜quadripole mass spectroscopy 四極質譜electrospray mass spectroscopy 電噴射質譜學field ion mass spectroscopy [物]場離子質譜學mass spectrometry mass spectroscopy 質譜學 返回 mass spectroscopy