Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
G
o
o
g
l
e
|
Forvo
|
+
底板导硐-上向回采法
用于平硐、隧道和巷道的爆破方法。分段或者一次全长开挖断面下面的部分,或在底板导硐,上面部分则通过回采或分层开挖使其破碎
expl.
bottom heading - overhand stoping
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