变色机理
mechanism of photochromism
Discoloration
呈色机理
colouring mechanism
colouration mechanism
color mechanism
coloring mechanism
Color Causing mechanism
color generation mechanism
colour generation
Color-generating mechanism
color development mechanism
Color-generating mechaˉnism
tinting mechanism
防变色机理
anti-tarnishing mechanism
显色机理
Coloration mechanism
Mechanism of color development
着色机理
coloring mechanism
Colouring agent
colored mechanism
color generation mechanism