Việt
gương lõm
Anh
concave mirror
Đức
Hohlspiegel
Konkavspiegel
Sammelspiegel
konkaver Spiegel
Pháp
miroir concave
[DE] konkaver Spiegel
[VI] gương lõm
[EN] concave mirror
[FR] miroir concave
miroir concave /SCIENCE,ENG-ELECTRICAL/
[DE] Hohlspiegel; Konkavspiegel
miroir concave /SCIENCE/
[DE] Hohlspiegel; Konkavspiegel; Sammelspiegel