Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Japanese
⇄
Arabic
English
French
German
Italian
Polish
Portuguese
Serbian
Spanish
Swedish
G
o
o
g
l
e
|
Forvo
|
+
後退波管
vac.tub.
backward-wave tube
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
