For applications where middle frequency acoustic performance is critical (e. g. speech), insulating glass units can benefit from being filled with sulfur hexafluoride (SF6) gas mixtures.
对于那些中频声音性能在其中起着关键作用的应用(比如语音)，用六氟化硫(SF6)混合气体填充绝缘玻璃元件大有裨益。
Even one gas molecule can break a silicon-oxygen bond in glass, generating a defect, said Carlo G. Pantano, a professor of materials science at Pennsylvania State University.
“一个气体分子就可以破坏玻璃的硅氧键，并诱生一个缺陷。”Pennsylvania州立大学的材料科学教授Carlo G . Pantano说。
Ready: liquor 1500 g fresh roses 300 grams (dry rose 500 grams) a ceramic POTS (or glass tank) approach: add white wine and roses steeped 30 days (glass jar to seal!
准备好：白酒1500克鲜玫瑰300克（干玫瑰500克） 一个陶瓷罐子（或玻璃罐） 做法：加入白酒和玫瑰花泡制30天（玻璃罐要密封！
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