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Mining Engineering Coal Mining Regulation In India Difficulty: Medium

'T'h'e' 's't'a't'e' 'o'f' 'e'v'e'r'y' 'b'u'f'f'e'r',' 'd'r'a'w'b'a'r' 'o'f' 't'u'b',' 's'a'f'e't'y' 'c'a't'c'h',' 'c'o'u'p'l'i'n'g' 'c'h'a'i'n's' 'a'r'e' 'e'x'a'm'i'n'e'd' 'o'n'c'e' 'a't'l'e'a's't' 'i'n' 'e'v'e'r'y' '.' '.' '.' '.' '.' '.' '.' '.' 'd'a'y's' 'b'y' 'c'o'm'p'e't'e'n't' 'p'e'r's'o'n'.'

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