Việt
rơle quang điện
rưle quang diện
rơ le quang điện
Anh
photoelectric relay
light barrier
Đức
fotoelektrisches Relais
Lichtrelais
Lichtschranke
Pháp
barrière lumineuse
photo-relais
relais photoélectrique
light barrier,photoelectric relay /ENG-ELECTRICAL/
[DE] Lichtrelais; Lichtschranke
[EN] light barrier; photoelectric relay
[FR] barrière lumineuse; photo-relais; relais photoélectrique
fotoelektrisches Relais /nt/ĐIỆN, KT_ĐIỆN/
[EN] photoelectric relay
[VI] rơle quang điện