英语语法分析

The photoluminescence mechanism for our sample is also discussed.

并对样品的发光机理作了初步探讨。

The safety of long afterglow photoluminescence materials is discussed in this paper.

本文对光致发光材料的安全问题进行了初步探讨。

It shows that the collection is superposition of Raman and photoluminescence spectrum.

结果表明，所采集到的是拉曼光谱和光致发光光谱的叠加。