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发明名称
METHOD OF CONTROLLING THE STATE OF ROCK MASS
摘要
申请公布号
SU1559187(A1)
申请公布日期
1990.04.23
申请号
SU19884462469
申请日期
1988.07.18
申请人
VNII GORNOJ GEOMEKHANIKI MARK
发明人
SMIRNOV VLADIMIR A,SU;BELOUSOV ALEKSANDR P,SU
分类号
E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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