And simultaneously, the doping ions, to a certain extent, can restrain the surface plasmon resonance absorption and minish the size of Ag nanoparticles. 在光吸收性能方面，鑭和鋁的引入都會在一定程度上抑制銀粒子的表面等離子共振吸收，同時細化銀納米粒子。
Then, the sound reflection and absorption characteristics of the micro-perforated structure in the newly-built amphitheatre are investigated. 同時，分析了這種微穿孔吸聲反射板結構在階梯教室中的聲反射和聲吸收性能。
