测控为汽车采集分析系统_液压振动测试Control system for vehicle acquisition and analysis of hydraulic vibration test level _-Control system for vehicle acquisition and analysis of hydraulic vibration test level _

an article about Free Vibration analysis of Laminated Orthotropic Spherical She-an article about Free Vibration analysis of Laminated Orthotropic Spherical Shell

一篇关于裂纹转子轴振动特性的研究，可为从事这方面工作者提供很有价值的参考意义。-A study on the vibration characteristics of a cracked rotor shaft, provide valuable reference for workers in this field significance.