The BCT superfine powder has been obtained ,which the powder size is 35~40nm,specific surface area is 12.9 m2/g,crystal phase i s single.是什么意思_The BCT superfine powder has been obtained ,which the powder size is 35~40nm,specific surface area is 12.9 m2/g,crystal phase i s single.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句