... ultrasonic examination of welds ==> 焊接的超声检验 ultrasonic excitation ==> 超声激发 ultrasonic extraction ==> 超声萃取 ...
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Ultrasonic excitation of pulse code 超声激励脉冲编码技术
Conclusion: Ultrasonic excitation of pulse code is helpful and therefore has a high specificity and sensitivity in the diagnosis of ra and OA.
结论超声激励脉冲编码技术是一项有价值的诊断技术，对RA和OA的诊断具有高度的特异性和敏感性。
For arc ultrasonic excitation, both the continuous and the pulse signal was separately applied to the test system including a conventional arc welding circuit.
在常规弧焊回路中采用了连续波和脉冲敲击式等不同的激励方式获得电弧超声信号。
Bidirectional electric pulse excitation of piezoelectric transducers for pulsed ultrasonic wave is investigated in this paper.
本文对双向电脉冲激励压电陶瓷超声换能器进行实验研究。
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