幅射瞬态脉冲波的圆形活塞声源在超声检测中得到广泛应用。
The acoustic source of plane circular pistons with the radiating transient pulse wave finds wide application in the ultrasonic inspection and test.
引进基脉冲响应函数概念，并探讨了椭圆形缺陷后场散射基脉冲响应函数。
The basic impulse response function is introduced, and that of elliptical flaws is studied.
结果显示：单脉冲烧蚀时的典型表面形貌为周围隆起的圆形弹坑；
The results show that the surface morphology of single-pulse ablation region seems like a circular crater with edge upheaved;
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