The plastic inner cup member has plural, evenly spaced diagonal braces extending between and joining the axial flange and the radial flange of the inner cup.
内的塑料杯成员复数，均匀分布的扩大两者之间的对角括号和加入法兰轴向和径向法兰内杯。
2
The circle section is rather reasonable for axial compressed member.
在轴向受压构件中，用圆形截面也是合理的。
3
For a complanate parallel chords truss, the axial forces of a member can be solved by the shear-diagram and two simple expressions.