Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
Arabic
English
Finnish
French
German
Greek
Italian
Japanese
Norwegian Bokmål
Polish
Portuguese
Russian
Spanish
Swedish
Terms
for subject
Acoustics
containing
效率
|
all forms
|
in specified order only
Chinese
English
电声
效率
electroacoustical efficiency
Get short URL
