To prevent the heavy element blowoff from the cavity wall into the cavity, an approach making use of getting low Z material filled in the cavity is investigated by analytical method.是什么意思_To prevent the heavy element blowoff from the cavity wall into the cavity, an approach making use of getting low Z material filled in the cavity is investigated by analytical method.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句