hublot /TECH/
[DE] Sichtfenster
[EN] oven viewing panel
[FR] hublot
hublot
[DE] Kontrollfenster
[EN] inspection window; porthole
[FR] hublot
fenetre blindee,fenetre de protection,hublot /ENERGY-ELEC/
[DE] Schutzfenster; Strahlenschutzfenster
[EN] shielded window; shielding window
[FR] fenetre blindee; fenetre de protection; hublot