Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Arabic
Finnish
French
German
Italian
Japanese
Norwegian
Norwegian Bokmål
Polish
Portuguese
Spanish
Swedish
G
o
o
g
l
e
|
Forvo
|
+
optical light output ratio
of a luminaire
light.
Leuchtenwirkungsgrad
m
;
optischer Wirkungsgrad
einer Leuchte
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
