Purification conditions of mica powders in pearly pigments were studied by measuring whiteness of calcined mica powders.Permutation and combination methods or orthohombic experiments were carried out.是什么意思_Purification conditions of mica powders in pearly pigments were studied by measuring whiteness of calcined mica powders.Permutation and combination methods or orthohombic experiments were carried out.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句