超细粉...

Micropowder of mullite is manufactured by gap mill.采用环缝磨制备了莫来石微粉....

micropowder的音标：micropowder的英式发音音标为：[maɪkrɒ'pəʊdər]micropowder的美式发音音标为：[maɪkrɒ'poʊdər]...