Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
French
German
Russian
G
o
o
g
l
e
|
Forvo
|
+
radium G
chem.
镭 G
(铅的稳定同位素 Pb206)
earth.sc.
镭 G
(铅的同位素 Pb²⁰⁶)
met.
镭 G
(铅-206,Pb²¹⁶)
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Add
|
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Report an error
|
Get short URL
|
Language Selection Tips