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ball mill mortar vector

distances from the source The first calculation was done for a conventional ball mill BALL MILL Noise level Measured at Distance from source Noise level at distance dB meters m dB 105 4572 1 118202 5 104223 10 98202 50 84223 100 78202 150 74680 200 72182 250 70243 300 68660 350 67321 400 66161 450 65138 500 64223 750 60

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