Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
prestressed concrete string
This HTML5 player is not supported by your browser
tech.
预应力混凝土楼梯斜梁
;
预应力混凝土桁条
Add
|
Report an error
|
Get short URL
