Each crystal structure consists of alternating layers of silicondioxide and a polymer material, so that the spacing between similar layers matches the wavelength of phonons.
每个晶体结构由相间的二氧化硅层和高分子聚合材料层组成,相同材料层之间的间距与声子的波长相匹配。
2
As the principal component in glass, silicondioxide was used as early as 5000 BC.
作为玻璃的主要成分,二氧化硅早在公元前5000年就被使用。
3
It's puzzling to try to understand why their chili would need to include an anti-caking agent such as silicondioxide (also known as sand, or glass powder).