This paper gives the theoretic estimate and practical measurement data of radiation field during the course of transshipment of ~(60)Co source of 20 thousands Ci. The problem of radiation safety has been discussed.是什么意思_This paper gives the theoretic estimate and practical measurement data of radiation field during the course of transshipment of ~(60)Co source of 20 thousands Ci. The problem of radiation safety has been discussed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句