Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Russian
⇄
Chinese
Czech
English
Estonian
French
German
Hungarian
Italian
Japanese
Latvian
Norwegian Bokmål
Polish
Portuguese
Russian
Spanish
Ukrainian
Terms
for subject
Optics
branch of physics
containing
обратное число
|
all forms
Russian
English
диафрагменное число, обратное относительное отверстие
f number
Get short URL
