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net unit value
The difference between the gross unit recoverable value and the cost of mining, treating, and marketing ore; in other words, the net operating profit.
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nitroglycerin
CH2 NO3 CHNO3 CH2 NO3 ; pale yellow; flammable; melting point, 13.1 degrees C; and explosion point, 256 degrees C. Used as an explosive, in the production of dynamite and other explosives.
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Non-electric blasting
The firing of one or more charges using safety fuse, igniter cord, detonating cord, shock or gas tubing, or similar non electric materials to initiate a blasting cap.
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Mines Solution, Orissa, India
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