Based on this observation, the scientists speculate that van Gogh's technique of blending white and yellow paint might be the cause of the darkening of his yellow paint.
The phase change thermography technique is a wind tunnel test technique to spray some phase change painton the aircraft surface for measuring heat distribution in a large area.
Exhaust gas detector \ a variety of cleaning equipment maintenance \ paint and so on. Strong maintenance team and professional service team are its technique power.