The elastic wave reflection method is one of the effective methods of detecting the thickness of the top coal seam.
声波反射法是目前顶煤厚度探测的有效方法之一。
A new reflection wave method is presented for inspecting the pile integrity of the non-linear elastic material under the condition of low strain.
对非线性弹性材料桩身完整性检测的低应变反射波新方法进行了研究。
A new reflection wave method is presented for inspecting the pile integrity of the non-linear elastic material under the condition of low strain.
对非线性弹性材料桩身完整性检测的低应变反射波新方法进行了研究。
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