vacuum coating短语¹³¹⁶²⁰⁺³ 基本例句 真空镀膜,真空涂层 A technological process of vacuum coating of the plaster products for decoration have been found, in which it is crucially important to use polyurethane varnish as primer of plaster products. 作者找到了一个在石膏制品上进行真空装饰镀膜的工艺流程，其中以聚氨脂清漆作为底油是工艺的关键。 cnki