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Advances in Civil Engineering
/
2020
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Article
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Tab 1
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Research Article
Nuclear Magnetic Resonance Study on Microstructure and Permeability of Coals of Different Ranks
Table 1
Coal basic parameter test.
Sample
Ad (%)
Mad (%)
Vdaf (%)
R
0
max
XJ
7.33
1.02
40.64
0.78
HB
7.52
0.88
10.35
2.18
ZM
8.41
2.94
5.50
3.41