Việt
tia sáng
chùm ánh sáng
chùm tia sáng
chùm
Anh
light ray
ray
pencil
bundle
stack
truss
beam
light beam
Đức
Lichtstrahl
geometrischer Lichtstrahl
Pháp
rayon de lumière
Lichtstrahl /m/V_LÝ/
[EN] beam, light beam, light ray
[VI] chùm, chùm ánh sáng, tia sáng
light ray /ENG-ELECTRICAL/
[DE] Lichtstrahl; geometrischer Lichtstrahl
[EN] light ray
[FR] rayon de lumière
light ray, ray
light ray, pencil,bundle, stack, truss
light ray /n/OPTICS-PHYSICS/