Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
G
o
o
g
l
e
|
Forvo
|
+
底部空气垫
层装药结构,其特点是空气层在炮孔底岩石表面与药柱下端之间,空气垫层上面是一连续药柱,爆炸时利用底部空气垫层调节爆炸气体压力,延长其作用时间,改善了爆破效果
expl.
charge with bottom air buffer
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