gypsum plaster短语¹⁴⁴⁹⁷²⁺² 基本例句 粉饰用石膏粉,石膏胶凝材料,石膏灰泥 The invention also concerns a method for preparing the plaster composition and a gypsum plaster board obtainable from said composition. 本发明也关于一种用于制造石膏组合物的方法和一种用所述组合物获得的石膏板。 bogu6688 The invention is useful for producing lightened gypsum plaster boards. 本发明可用于制造减轻的石膏板。 sinopat