Electrons reach a maximum energy of 1 MeV, and their intensity has a maximum of 100 million per second per square centimeter.是什么意思_Electrons reach a maximum energy of 1 MeV, and their intensity has a maximum of 100 million per second per square centimeter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句