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- Relationship between jointed slab and void of elastic foundation and acoustic features of resonator is studied by acoustic vibration. 采用声振法研究接缝和弹性地基脱空与声学特征变化的关系,利用有限元方法分析了有、无脱空接缝板的振动频率。
- Piping vibration or damage caused due to dynamic loads, such as mechanical vibration, acoustic vibration, fluid hammer, pulsation and relief valve discharge. 由于动荷载引起的管道震动和损坏,例如机械震动,声波震动,液击,压力脉动和泄放阀门泄放时引起的震动。
- The environmental tes ting ,specification,and analytic evaluation for full size spacecrafts or lau nch vehicles in acoustic vibration,separation shock and random vibration,as well as component testing and specification are emphasized. 重点介绍了实尺卫星或星箭合一声振、随机振动、分离冲击环境试验 ,试验规范与分析评估技术以及部件级试验与规范的进展情况。
- The range and size of void,detected by acoustic vibration,prove to be closely associated with the acoustics features. 为用声学特征进行地基脱空等缺陷无损检测提供了理论和实验依据。
- characteristic length of acoustic vibration 声振动特征长度
- Beijing Acoustic Vibration Technology Corporation 北京新体感电子技术有限公司
- Analysis to Acoustic Vibration Properties of the Long Bones in Vivo 在体长骨声振动特性分析
- Application of Acoustic Vibration to the Roof stability Analysis 声波在采场顶板稳定性分析中的应用
- Dancing in the street is rather infra dig for a bank manager! 一个银行经理在街上跳舞,那是颇失身分的!
- infra acoustic frequency 亚声频
- Void identification of jointed slab on elastic foundation by acoustic vibration 弹性地基接缝板声振法脱空判定
- To make a scene in any public place is infra dig. 在任何公共场所闹事都是有失身份的。
- The Response Prediction of the Spacecraft under Acoustic Vibration Environment 航天器声振动力学环境响应分析
- Advances in Study and Research on Acoustic Vibration Property of Wood 木材声振动特性的研究与进展
- infra acousticadj. 亚声的(声下的;亚音频的)
- Opened the show with an acoustic set. 不用电子乐器开始演出
- Even at full speed the ship's engines cause very little vibration. 这条船即使全速前进,发动机的震动也很小。
- Your finger can feel the vibration on the violin string. 你的手指能感觉小提琴琴弦的颤动。
- Acoustic Vibration Mechanism and Vibration Damping Measures for Backpass of Large Utility Boiler 大型电站锅炉尾部烟道声学振动机理及消振措施
- Designed or constructed to operate smoothly and without vibration. 自动定的为运行平稳、无振动而设计或建造的