This method was very effective as the glass had not touched any surfaces between being soft and becoming hard, so it stayed perfectly unblemished, with a "fire finish".
Volcanic ash is as soft as baby powder, if baby powder were made of microscopic shards of glass.
火山灰就像婴儿爽身粉般轻软，如果婴儿爽身粉是由细小的玻璃碎片做的话。
3
To keep frost from accumulating on the Windows in your home and your vehicle, dip a sponge in salty water and run it over the inside and outside of the glass, then rub dry with a soft cloth.