The results showed that radioactivityc ontamination on surface of circulating currencies, and ratio scale of radioactivity in circulating currencies itself are in background range.是什么意思_The results showed that radioactivityc ontamination on surface of circulating currencies, and ratio scale of radioactivity in circulating currencies itself are in background range.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句