Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
Russian
G
o
o
g
l
e
|
Forvo
|
+
斯涅耳折射定律
el.
Snell's law
tech.
Snell laws of refraction
Add
|
Report an error
|
Get short URL
|
Language Selection Tips