The structure of the cavitation bubblecloud is featured by the regional distribution of cavitation bubbles. Within a range of ultrasonic power levels the structure remains stable.
空化泡群的结构以空化泡在声场中的区域化分布为特征。在一定功率范围内空化泡群的结构保持稳定。
2
Barcelona's Cloud 9 loosely conceived of a vehicle that is both light and flexible-a bubble with soft skin and photovoltaic dots that generate energy.
巴塞罗那的“9号云”设想出一种既轻盈又灵活的车辆——一个外表柔软，利用光电小突点发电的泡泡机。
3
The process blasted out material to form the bubble structure of glowing gas against denser material in a surrounding molecular cloud.