High frequency ultrasonic wave 高频超声
B-ultrasonic wave type B超声像图分型
Ultrasonic wave extraction 超声波提取 ; 超声提取
ultrasonic wave test 原位测试超声波试验
ultrasonic wave meter 超声波测波仪
using ultrasonic wave 利用超声波
ultrasonic wave radar 超声波测距雷达
Short ultrasonic wave 小超短波电疗
The stress in ferromagnetic materials was studied by measuring the change of the amplitude of ultrasonic wave with electromagnetic acoustic transducers.
本文主要是对用电磁声换能器，通过测量超声波幅度变化来测量铁磁性材料内部应力的方法进行实验研究。
The promotion effect of intensity ultrasonic wave on electropolishing process and the influence of ultrasonic wave on polishing quality were analyzed, and better processing parameters were obtained.
分析了功率超声波对电化学抛光过程的促进作用及电流密度对抛光效果的影响，获得了较为合理的工艺参数。
So this thesis on the basis of traditional craft, utilizing respectively microwave and ultrasonic wave, improve and optimize the craft of traditional extraction.
为此本文在传统工艺的基础上，分别介入微波和超声波，对传统提取工艺进行了改进和优化。
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