“逆光”的英语？

本文介绍了一种汞盐可逆光色涂层.The optical properties of a recoverable mercury salt photochromic paint were studied.逆光 ( 侧逆光 ) 片三点定标的关键在于控制中点.Backlight ( side surface ) tablets experimrnets uncalibration is the key point.向上倾斜时要注意逆光问题.B...