weak adj. 1.柔弱的;虚弱的,有病的。 2.无力的,软弱的;(根据等)不充分的,薄弱的。 3.不中用的;愚钝的;脆弱的,易坏的。 4.有弱点的。 5.淡薄的;麸质少的 (opp. strong )。 6.(文章等)松懈的,无力的。 7.【语法】弱变化的,按规则变化的。 8.【商业】疲软的,低落的。 one's weak point [side] 弱点。 the weaker sex [vessel] 女性。 a weak vessel 不可靠[不中用]的人。 The weakest goes to the wall. 优胜劣败;弱肉强食。 weak evidence 不充分的证据。 a weak mind 低能。 weak surrender 不光彩的投降。 a weak book 没有什么价值的书。 He is weak in mathematics. 他数学不行。 weak tea 淡茶。 weak brandy and water 搀水冲淡的白兰地酒。
Firstly , the shear and normal stresses of tapered members under the transverse load or axial load are analysed , and the stresses formulas are obtained which are different from those of the prismatic ones . secondly , research is done on the in - plane inelastic stability of tapered members under axial loads about strong axis and weak axis . a new design method is suggested in which the tapered member is equivalent to the prismatic member with the cross - section at the larger end of the tapered member 同时由分析可知,目前采用的将变截面压杆按照弹性极限荷载等效的原则等效成以小端截面为准的等截面压杆的设计方法,在弹塑性阶段低估了压杆的承载力,即弹性等效的压杆在弹塑性阶段并不等效,实际变截面压杆的承载力比等效的等截面压杆的承载力要高。