玻璃的清洗方法很多,可按情况而定。 我们习惯在新年时重新粉刷墙壁,而玻璃窗又往往会粘上石灰水,要清除这些石灰痕迹,用一般的清水擦洗是比较困难的。但你只要用湿布蘸细砂子擦洗玻璃窗,就能轻而易举地使石灰斑点脱落。 玻璃日久发黑,不易擦净,这时,可用细布蘸牙膏擦拭,或把石膏粉或粉笔灰蘸水涂在玻 A lot of glass cleaning methods, according to the circumstances may be. We are accustomed to repainting the walls during the New Year, and the glazed windows tend to stick to the lime water. To remove these traces of lime, it is more difficult to scrub with normal water. But as long as you use a damp cloth dipped in fine sand scrub glass, you can easily make the lime spots off. Black glass for a long time, not easy to wipe clean, then available fine cloth dipped in toothpaste wipe, or gypsum powder or chalk dipped in water coated glass