弹塑性力学的方法在解决实际问题上是不能与有限元法相提并论的。所以，...理论只能是解析的，而有限元法只不过是一种现在应用得很成功的技术手段而已-Elastic-plastic mechanics, in solving practical problems are not comparable with the finite element method. Therefore, the ... theory can only be resolved, and the finite element

45．“取磁盘空间大小” 在Windows 2000、2000 Server平台下编译成功，演示如何利用磁盘空间大小以用于加密。-45. "Take the disk space" in the Windows 2000,2000 Server platform compilation is successful, demonstrate how to use the disk space to use for encryption.