spectroscopic illuminator

例句：

1. 1. The spectroscope was used to analyze the chemical composition of the sample.
   光谱仪被用来分析样品的化学成分。
2. 2. The illuminator was designed to provide brighter lighting in dark environments.
   照明器被设计成在黑暗环境中提供更明亮的照明。
3. 3. The illuminator is essential for creating a comfortable working environment.
   照明器对于创造一个舒适的工作环境至关重要。