diffusion halo

例句：

1. 1. The diffussion halo is a natural phenomenon that occurs when light passes through a gas or vapor.
   扩散晕是当光通过气体或蒸汽时发生的自然现象。
2. 2. The halo around the sun is caused by its heat and light.
   太阳周围的晕圈是由其热量和光线造成的。
3. 3. The halo effect can be seen in many different fields of study, including astronomy and physics.
   晕效应可以在许多不同的研究领域中看到，包括天文学和物理学。