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一种厚夹矸煤层分采分运矸石回填采空区方法

Release time:2024-05-28 Hits:

Disigner of the Invention:zhangjixiong,孙强,李百宜,殷伟,lijian
Type of Patent:国内
State of Patent:专利授权
Application Number:201410217185.1
Number of Inventors:7
Service Invention or Not:no
Application Date:2014-05-21
Authorization Date:2016-01-06
First Author:ZQ