Using the grid ionization chamber method and small solid angle method,the number of 238U nucleus in the highly pure U3O8 sample is determined.是什么意思_Using the grid ionization chamber method and small solid angle method,the number of 238U nucleus in the highly pure U3O8 sample is determined.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句