有限元分析软件，可应用于多个专业，无版权问题。-finite element analysis software can be applied to a number of professional, non-copyright issues.

this is a working draft containing preliminary mate- rial, some of which the reader is likely to nd obscure.-The Verilog Formal Equivalence (VFE) Project is funded by the U.K. Engineering and Physical Sciences Resea

matlab平台开发的振动工具箱,进行振动中的数值计算 不错的-The vibration of the matlab platform development kit, vibration numerical calculation of the good