中文说明：
高斯扩散模式适用于均一的大气条件，以及地面开阔平坦的地区，点源的扩散模式。排放大量污染物的烟囱、放散管、通风口等，虽然其大小不一，但是只要不是讨论烟囱底部很近距离的污染问题，均可视其为点源。
English Description：
< p > Gaussian diffusion model is suitable for uniform atmospheric conditions, as well as open and flat areas, point source diffusion model. The chimneys, diffusers, vents and so on, which emit a lot of pollutants, can be regarded as point sources as long as the pollution problem at the bottom of chimneys is not discussed in a very close distance.