Under the frequency of resonance, small particles which are in the bottom of an upright standing wave tube will rise and move to the node, or loop planes, and keep suspending there.
竖直放置的驻波管在共振频率下，位于其管底的微小颗粒群会在一定声压级下产生悬浮现象，即腾空而起，悬浮在波幅波节平面。
One of them is the sound standing wave resonance of fluid in cavity, the frequencies of which are invariable as velocity of flow is increasing.
经过分析，发现突出试验段壁上的流线型腔与突出的矩形腔在气流中被激振荡相似，存在着其频率与流速无关的腔中液体声共振谱峰；
The flow-induced self-sustaining oscillation and standing wave resonance of protruding and trap cavities are studied at the low speed range.
本文研究了低流速范围内突出式和陷落式圆柱形腔的流激自持振荡和驻波共振问题。
The dispersion and standing wave factor are measured by resonance method. Compared with the theoretical results and simulating results, they match very well.
采用谐振法测量它们的色散特性和驻波系数，实验结果与理论计算值和模拟值吻合良好。
The standing wave resonance of the elastic plates in the invention is sensitive to the surface conditions, and the corrosive conditions of the surfaces of the elastic plates can be marked.
本发明中弹性板驻波谐振对表面状况敏感，能标定弹性板表面的腐蚀状。
The principle of producing and receiving ultrasonic wave with the piezoelectric ceramics transducer is introduced. Standing wave is strongest when voltage frequency is resonance.
介绍了压电陶瓷换能器产生和接收超声波的工作原理，当输入电压的频率为借振频率时，超声波在介质中产生的驻波最强。
The principle of producing and receiving ultrasonic wave with the piezoelectric ceramics transducer is introduced. Standing wave is strongest when voltage frequency is resonance.
介绍了压电陶瓷换能器产生和接收超声波的工作原理，当输入电压的频率为借振频率时，超声波在介质中产生的驻波最强。
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