China Isotope and Radiation Association (CIRA) was founded in April 1989.It is a non-profit economic-social organization.是什么意思_China Isotope and Radiation Association (CIRA) was founded in April 1989.It is a non-profit economic-social organization.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句