Through contrasting and analyzing, the particle vibration velocity were forecasted by the orderliness formula of attenuation of blasting earthquake wave is precise relatively.
经对比分析,所得爆破地震波衰减规律公式预测的质点振动速度具有较高的精度。
2
The scattering of fog particle influence the images by three aspects: the attenuation of object light, the scattering of air light and the multi-scattering of fog particle.
Based on the analysis of the existing theoretical model of ultrasonic attenuation, the model for ultrasonic attenuation of composite particle size distribution was established.