In the cement made from the red mud, the average specific activities of 226 Ra, 232 Th and K are 202, 211 and 140Bq/kg, respectively.是什么意思_In the cement made from the red mud, the average specific activities of 226 Ra, 232 Th and K are 202, 211 and 140Bq/kg, respectively.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句