Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Russian
Terms
for subject
Optics
branch of physics
containing
principle of
|
all forms
|
exact matches only
|
in specified order only
English
Russian
principle of
reversibility
принцип обратимости световых лучей
principle of
reversibility
закон обратимости
Get short URL