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见习会员
等级: 小兄弟
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滚筒周长 = 1600 衬垫 = 4 π = 3.1416 版厚 = 2.84 2π R = 1600 R = 254.6473135 R1 = R + (衬垫) = 258.6473135 2πR1 = 1625.1328 2πR2 = 1642.977088 缩放率 % = 1.098020297 公式: (2nR1 - 2nR2) / 2nR1 X 100% |
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