单词	正电子素
释义	正电子素n.positronium【物】电子偶素，正电子素
随便看	automatic art automatic ash analysis automatic assembly automatic assembly equipment automatic assembly machine automatic assembly system automatic asymmetrical beam automatic attenuator automatic audio switching automatic audio switching system automatic audio switching system{=aas} automatic audio switching，aas automatic autocollimator automatic, automatical automatic back bias automatic background control automatic backing equipment automatic backup automatic backup source automatic back washing strainer automatic back washing strainer automatic bagger automatic balance automatic balance recorder automatic balancing