英德
有道
百度
谷歌
图片
维基
百科
旋笛 [xuán dí]
[声] siren
- 人的发声器官、旋笛、电动气流扬声器以及一般哨子等都是根据这个原理。
Man's speech organs, sirens, electro-pneumatic loudspeakers as well as common whistles are all based on this principle. - 文章介绍了超声旋笛的发声原理，开展了防垢降粘的实验研究。
This paper introduces the function mechanism of ultrasonic siren. Some experiments about viscosity reduction and scale removal are made. - 作为一种特殊的流体动力式声波发生器，超声旋笛在电泵井防垢降粘方面有着显著的使用效果。
As a special hydrodynamic sound generator, ultrasonic siren has applicative effects on viscosity reduction, scale removal on electric pump well.
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