Two ways were used to prepare PFM powders, one was to add different proportions of leucite to the ceramic frit, and the other was to grain-process the ceramic frit.是什么意思_Two ways were used to prepare PFM powders, one was to add different proportions of leucite to the ceramic frit, and the other was to grain-process the ceramic frit.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句