Ultrasonic is a kind of mechanical wave that frequency is upper 20KHz. Ultrasonic may be generated by many ultrasonic transducers.
超声波是频率高于20KHz的机械波,它可由多种能量转换器转变而成。
参考来源 - 超声治疗仪控制电路的设计与研究·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
A vibration source and a medium are needed to form a mechanical wave.
机械波的形成需要振源和介质。
In this paper, we discuss the nature of half-wave loss about mechanical wave, electromagnetic wave and matter wave respectively.
本文分别讨论了机械波、电磁波、物质波在两种介质的分界面正入射传播时产生半波损失的本质。
In the process of spinning spun yarn, the improvement of yarn quality depends on proper rubber-covered roll, roller without mechanical wave, new type under-pin and ring.
在细纱工序中,采用合适硬度的胶辊、无机械波罗拉、新型下销与钢领,能快速、全面提高成纱质量。
And specifically, MO theory is the quantum mechanical description of wave functions within molecules.
特别的,MO理论是,分子内波函数的描述。
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