Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
English
Maori
Russian
G
o
o
g
l
e
|
Forvo
|
+
English thesaurus
Gas Expansion Factor
abbr., geol.
GEF
(
Kenny Gray
)
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
