1. The process of rarefying air involves reducing its pressure and increasing its volume.
稀薄空气的过程涉及减少其压力和增加其体积。

2. The rarefying atmosphere at high altitudes can make it difficult to breathe.
高海拔处的稀薄气氛可能会使呼吸困难。

3. The scientist's research focused on rarefying gases to study their properties.
科学家的研究重点是稀薄气体以研究其特性。

4. As the temperature increases, the air becomes less dense, rarefying it.
随着温度的升高，空气变得更加稀薄。

5. The artist's work had a rarefying effect on the viewer, drawing them into a dreamlike state.
艺术家的作品对观众产生了一种稀薄的影响，使他们陷入梦幻般的状态。

6. The process of rarefying water involves removing impurities and contaminants.
稀薄水的过程涉及去除杂质和污染物。