Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Arabic
Chinese
Danish
Dutch
Finnish
French
German
Greek
Italian
Japanese
Polish
Portuguese
Russian
Serbian
Spanish
Swedish
Ukrainian
Terms
for subject
Telecommunications
containing
primary standard
|
all forms
English
Russian
primary-frequency standard
первичный эталон частоты
primary-light standard
первичный световой эталон
Get short URL