Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
to phrases
API Standard
This HTML5 player is not supported by your browser
dril.
美国石油学会标准
API Standard
:
4 phrases
in 2 subjects
Drilling
2
Metallurgy
2
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
