Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
G
o
o
g
l
e
|
Forvo
|
+
初始参考
基准
地球模型
avia.
preliminary reference earth model
初始参考地球模型
space
preliminary reference earth model
Add
|
Report an error
|
Get short URL
|
Language Selection Tips