Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
G
o
o
g
l
e
|
Forvo
|
+
较稳定煤层
厚度有一定变化,但规律性较明显,结构简单至复杂,全区可采或大部分可采,可采范围内厚度变化不大的煤层
expl.
comparative regular coal seam
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