Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
G
o
o
g
l
e
|
Forvo
|
+
to phrases
Protodyakonov coefficient of rock strength
expl.
普氏岩石硬度指数
苏联普罗托季雅科诺夫〈M.M. Пpотодьяконов〉20 世纪30年代提出普氏分级法。这一方法主要采用的分级指标为 f = Rc/10,式中 Rc 为岩块单轴抗压强度 MPa。用 f 值把岩石分成 20 个级别
;
普氏冲击强度指数
Protodyakonov coefficient of rock strength
:
1 phrase
in 1 subject
Technology
1
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