介绍了一种测量辐射压力法的超声功率计设计原理，在超声功率计设计中融入智能控制的设计思想。
The designing principle of ultrasound power meter based on radiation pressure method is explained. In designing, intelligent controlling method is used.
辐射压力法测量声功率是一种常用的超声功率测量方法。
Radiation pressure method is often used in ultrasound power measurement.
利用超声波法提取杏干多糖，以多糖含量为指标，研究了超声时间、超声功率、料液比对杏干多糖得率的影响。
Ultrasonic wave was applied in extraction of polysaccharides from dried apricot the content of polysaccharides was served as index.
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