1·That allows the material to block and reflect back the phonons in the form of heat.
因此，这些材料就可以阻挡以热量形式存在的声子，并将它们反射回去。
2·Each crystal structure consists of alternating layers of silicon dioxide 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。
3·And particles of sound, known as phonons, are just as susceptible to Heisenberg's uncertainty principle as particles of light (photons) -or, indeed, any other fundamental particle.
声音粒子，即声子，和光的粒子(光子)或者其他基本粒子，都受海森堡的不定性原理影响。
4·The next step is to look for Hawking phonons.
下一步是寻找霍金声子。
5·In other words, the phonons moved more easily in one direction than the other (Science, DOI: 10.1126/science.1132898).
换句话说，声子在一个方向的流动比另一个方向更容易。