diffusion
US
UK diffusion n: (spread, dispersal) (散发，传播)
SC 扩散 kuò sàn
TC 擴散
TC 擴散
Diffusion of the population encouraged different mutations.
diffusion n: (light: refraction) (光线)
SC 漫射 màn shè
The experiment was set up to study the diffusion of light.
diffusion n: (photography: soft focus) (摄影：影像轮廓的)
SC 柔化 róu huà
The photographer used a diffusion technique to convey a feeling of warmth.