super sonic testing 超声波检测
ultra-sonic testing 超音波检验
echo sonic testing 反射波法动测
steel thin-walled sonic-testing tubes 钢薄壁声测管
sonic echo testing 反射波法检测
sonic wave testing 声波测试
sonic general testing 声学综合检测
sonic nondestructive testing 音频无损检测
This paper proposed classificatory method based on sonic testing and probabilistic neural network(PNN),it realizes classification between different hardness.
同时提出基于音频检测与概率神经网络的分类方法,实现了不同零部件的硬度分类。
参考来源 - 火炮零部件硬度智能无损检测系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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