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| 100 | _aDESHMUKH, R.T | ||
| 245 | _aOPEN CAST MINING | ||
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_bMYRA PUBLICATION _aDHANBAD _c2017 |
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| 300 |
_a175 _bI |
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| 650 | _aMINING | ||
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_c61839 _d61839 |
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