表2-24的說明如下:1.軸線x0—x0及y0—y0為通過截面重心的主軸;2.角度α按弧度計(jì)算,α°按角度計(jì)算。截面力學(xué)特性表表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表2-24續(xù)表 (共 242 字) [閱讀本文] >>