
 表1-32截面的幾何及力學特性F—面積;J—慣性矩;e—重心S到相應邊的距離;W—截面模數W=J/e;i—回轉半徑i=(J/F)1/2續(xù)表1續(xù)表2續(xù)表3續(xù)表4續(xù)表5續(xù)表6 (共 85 字) [閱讀本文] >>
海量資源,盡在掌握
 表1-32截面的幾何及力學特性F—面積;J—慣性矩;e—重心S到相應邊的距離;W—截面模數W=J/e;i—回轉半徑i=(J/F)1/2續(xù)表1續(xù)表2續(xù)表3續(xù)表4續(xù)表5續(xù)表6 (共 85 字) [閱讀本文] >>