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....
午餐可以吃自助餐，也可以选套餐。At lunchtime, there's a choice between the buffet or the set menu.在学校的自助餐厅里你会发现有很多饮食可供选择。You will find a wide variety of choices available in school cafeterias.我们坐在车站的自助餐厅里喝茶。We sat in the station bu...