| 1. | This paper is taking model seismology theory as guidance , regards ultrasonic experimental method as major research means , and has made artificial crack and pore model according to physical model similar principle with various materials 本文以模型地震学理论为指导,把超声波实验方法作为主要的研究手段,根据物理模型相似性原理,用多种材料制作了人工裂缝模型和孔洞模型。 |