Meaning of schlieren photography | Babel Free
Definitions
Any of several techniques used to record regions of different refractive index in a fluid; especially used to visualize the flow of air around objects
uncountable
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.