The variation of wave velocity before rupture of samples composed of rocks with different properties was studied by the ultrasonic impulse method.
用超声脉冲法研究了不同性质岩块构成的样品破裂前的波速变化。
The variation of wave velocity before rupture of samples composed of rocks with different properties was studied by the ultrasonic impulse method.
用超声脉冲法研究了不同性质岩块构成的样品破裂前的波速变化。
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