表面变暗的英文

• surface darkening
• tarnishing

• 表面:    surface; superficies; bounda ...
• 变:    become different; change
• 暗:    dark; dim; dull
• 表面变化:    superficial alteration
• 表面变坏:    surface deterioration

例句与用法

1. In computer graphics , a type of crt ( cathode ray tube ) in which the electron beamcauses thephosphorescent surface of the tube to darken rather than to brighten
   计算机图形技术中使用的一种阴极射线管，其中的电子束使该管的磷光表面变暗而不是变亮。