这样一种过渡称为结构的屈曲.Such a transition is known as buckling of the structure.当板失去稳定时, 就发生横向屈曲.When the plate becomes unstable, it buckles laterally.这种状态类似于压杆的屈曲.This behavior is similar to buckling of strut....
Hormone replacement therapy is very important and should be instituted early.激素替代治疗非常重要，应该及早开始。Replacement parts couldn't be found for love or money.替换零件怎么都找不到。Sending a replacement jet would have been uneconomic.当时...