light barium crown glass
light-light transfer efficiency
lightweight Light-Expansion Concrete
White Light Light-Emitting Diode
light barium flint glass
extra=dense barium crown
coactivated barium crown glass
anti-visible light and infrared light
breakdown light {NUC light}
digital light processing DLP light source
high light efficiency light source
light draft [= light draught]
light output characteristic and the light distribution