Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Russian
G
o
o
g
l
e
|
Forvo
|
+
7 layer reference model
stresses
telecom.
7-уровневая эталонная модель
(
oleg.vigodsky
)
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
