《表4 3种典型破坏现象的声音信号短时能量特性Table 4Short-time energy features of sound signals for three typical failure

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表2 不同孔洞形状岩样的压缩破坏形态与能量关系Table 2 Energy and failure characteristics of rock specimens with different cavity shapes under u

表4 不同工况下振动信号经VMD分解后的复杂度特征向量表Tab.4 Complexity feature vector table of vibration signals after VMD decomposition under dif

表4 3种成像技术的最低激光发射功率 (能量) Tab.4 Lowest laser emitting powers (energies) of three imaging techniques

表3 4种扰动信号能量归一化特征向量Table 3 Energy normalized eigenvector of 4kinds of disturbance signals

Table 1 Statistical table of the features for typical mafic dykes in the Dahongshan region

表3 8种层板峰值能量、最大能量、残余能量对应关系Table 3 Relationship of peak energy、maximum energy and residual energy for all laminates