Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
G
o
o
g
l
e
|
Forvo
|
+
unbonded casing
dril.
未封固套管
oil
未固结套管
;
未固住的套管
Add
|
Report an error
|
Get short URL
|
Language Selection Tips