A new physical and mathematical model of the thermal impulsemethod is set up. The testing techniques are discussed and analysed.
建立起热脉冲法的新理论模型，分析了相应的测试技术问题。
2
The variation of wave velocity before rupture of samples composed of rocks with different properties was studied by the ultrasonic impulsemethod.
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。
3
Based on the multi-impulsemethod of orbit maneuvers, the method to enable the whole satellite formation to maneuver with micro-propulsion thrusters was studied in this paper.