A unit of radioactivity, equal to the amount of a radioactive isotope that decays at the rate of3.7?010 disintegrations per second.是什么意思_A unit of radioactivity, equal to the amount of a radioactive isotope that decays at the rate of3.7?010 disintegrations per second.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句