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J Pharm Sci. 2016 Jun;105(6):1967-75. doi: 10.1016/j.xphs.2016.04.008. Determination of the Nip Angle in Roller Compactors With Serrated Rolls. Tan BM(1)...

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The largest angle that will just grip a lump between the jaws, rolls, or mantle and ring of a crusher. Also known as angle of bite; nip. (mining engineering).

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