X光背景照明  X-ray backlighting

背光照明  back light illuminationg; Backlight; back lighting

背光照明系统  backlight system

背景背景噪声  background

背景光照不均匀  nonuniform background illumination

背景照明  background lighting; Backlighting; back filling; set light

X射线背光照相  X-ray backlighting

背光照相  Backlighting

背景光  background light; Backlit; bias light; back light

背景光度  background luminance

背景光干扰  background light interference

背景光感应器  background light sensor

背景光源  Backlight; background light

背景照度  background illuminance

背景照相机  background camera

背景照准标  background collimating mark

背景照准点  background collimating pint

背面照明光电管  back lighting photocell

侧向背光照相  Side-on radiography