Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
source of elementary light waves
This HTML5 player is not supported by your browser
opt.
Quellpunkt von Elementarwellen
;
Quellpunkt von sekundären Kugelwellen
Add
|
Report an error
|
Get short URL
