[名词解释] 扩散(diffusion)
[名词解释] 扩散方程 diffusion equation
[名词解释] 扩散理论 diffusion theory
[名词解释] 中子扩散 neutron diffusion
[名词解释] 扩散面积 diffusion area
[名词解释] simple diffusion (简单扩散)
[名词解释] facilitated diffusion (协助扩散)
[名词解释] 促进扩散(facilitated diffusion)
[名词解释] 站坪长度 length of station site
[名词解释] 辅轨长度 length of track laid out