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2 圓柱形中空斷面尺寸如圖所示,此斷面針對 X 軸之迴轉半徑(radius of gyration)為何?(A) (B)(C) (D)
問題詳情
2 圓柱形中空斷面尺寸如圖所示,此斷面針對 X 軸之迴轉半徑(radius of gyration)為何?
(A)
(B)
(C)
(D)
參考答案
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