A stress wave reflection imaging (SWRI) method is presented to test and diagnose the complex defects in the concrete structure.
提出了混凝土结构中任意缺陷的应力波反射成像测试与诊断方法。
The variation of seismic velocity in shallow levels has important influence on velocity modelling and reflection imaging, which is confirmed by borehole data.
这一变化对建立地下速度模型及反射构造成象有较大影响，钻井资料证实了这一结果。
At last, from the reflection imaging theory and the calculating method of the converse light route, this test deduces the easy way to measure thin convex lens's optics parameter.
最后，通过薄凸透镜的反射成象原理和逆向光路的计算，推导出测量薄凸透镜的光学参量的简便方法。
At last, from the reflection imaging theory and the calculating method of the converse light route, this text deduces the easy way to measure this convex lens's optics parameter.
最后，通过薄凸透镜的反射成象原理和逆向光路的计算，推导出测量薄凸透镜的光学参量的简便方法。
At last, from the reflection imaging theory and the calculating method of the converse light route, this text deduces the easy way to measure this convex lens's optics parameter.
最后，通过薄凸透镜的反射成象原理和逆向光路的计算，推导出测量薄凸透镜的光学参量的简便方法。
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