Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Russian
⇄
German
G
o
o
g
l
e
|
Forvo
|
+
to phrases
система Порро
stresses
opt.
Porro-Prismensystem
m
система Порро:
2 phrases
in 1 subject
Optics
branch of physics
2
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
