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Extremum difference analysis of methane adsorption principle of #1890 coal sample.
| Numbering | Moisture Content | Particle Size | Temperature |
|---|---|---|---|
| 1 | 41.194 | 34.196 | 43.649 |
| 2 | 40.75 | 35.36 | 41.194 |
| 3 | 36.475 | 41.194 | 36.701 |
| 4 | 34.185 | 43.254 | 32.682 |
| Range | 7.009 | 9.058 | 10.967 |
