dif·fu·sion
noun/dɪˈfjuːʒn/
/dɪˈfjuːʒn/
[uncountable]- (formal) the act of spreading something widely in all directions; the fact of being spread in all directions
扩散：向各个方向广泛传播某物的行为；四面八方传播 - the diffusion of Marxist ideas
马克思主义思想的传播。
- the diffusion of Marxist ideas
- (specialist) the act of slowly mixing a gas or liquid in a substance; the process in which this happens
扩散：将气体或液体缓慢混合在物质中的行为；发生这种情况的过程 - the rate of diffusion of a gas
气体扩散的速度。
- the rate of diffusion of a gas
- (formal) the act of making a light shine less brightly by spreading it in many directions
（使光）模糊，漫射，漫散 - the diffusion of light by a convex surface
光通过凸面的漫射
- the diffusion of light by a convex surface