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名稱 截面高 截面寬 厚度 TUB20202.0 20 20 2 TUB20202.5 20 20 2.5 TUB25251.5 25 25 1.5 TUB25252.0 25 25 2 TUB25252.5 25 25 2.5 TUB30301.5 30 30 1.5 TUB30302.0 30 30 2 TUB30302.5 30 30 2.5 TUB30302.75 30 30 2.75 TUB40401.5 40 40 1.5 TUB40402.0 40 40 2 TUB40402.5 40 40 2.5 TUB40402.75 40 40 2.75 TUB40403.0 40 40 3 TUB40403.5 40 40 3.5 TUB40403.75 40 40 3.75 TUB40404.0 40 40 4 TUB50501.5 50 50 1.5 TUB50502.0 50
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序號 X軸的慣性距 Y軸的慣性距 X軸的抵抗距 Y軸的抵抗距 1 25 25 1.2 1.006 1.006 0.805 0.805 2 25 25 1.5 1.186 1.186 0.949 0.949 3 25 25 1.75 1.317 1.317 1.053 1.053 4 25 25 2 1.429 1.429 1.144 1.144 5 30 30 2.5 3.034 3.034 2.023 2.023 6 30 30 3 3.33 3.33 2.22 2.22 7 40 40 2.5 7.999 7.999 3.999 3.999 8 40 40 3 9.012 9.012 4.506 4.506 9 40 40 4 9.947 9.947 4.973 4.973 10 50 50 2.5 16.606 16.606 6.642 6.642 11 50 50 3 18.98