ZB 20001-1990
Coal Mine Rock Mechanics Terminology
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ZB 20001-1990
Standard No.
ZB 20001-1990
Release Date
1990
Published By
煤炭工业部
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ZB 20001-1990
ZB 20001-1990 history
1990
ZB 20001-1990
Coal Mine Rock Mechanics Terminology
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