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....
一张只读光盘能存储25万多页键入的文本。A CD-ROM can store more than 250,000 pages of typed text.布赖恩键入了他的个人密码。Brian keyed in his personal code.进入系统请键入用户名称和密码。Enter a username and password to get into the system....