pulse reflection method 脉冲反射法
pulse reflection fault locator 脉冲反射式故障定位器
pulse reflection mode 脉冲反射模
pulse reflection technique 脉冲反射技术
pulse reflection principle 脉冲反射原理
low-pressure pulse reflection 低压脉冲反射
pulse-reflection principle 脉冲反射原理
pulse reflection experiment 脉冲反射实验
zero point pulse reflection 零点脉冲反射
Methods By using the ultrasound pulse reflection law, the correlation between the process of thrombosis formation and changes in the ultrasonic velocity was studied quantitatively.
方法采用超声脉冲反射法，着重就血栓形成过程中对其声速变化的相关性进行了定量研究。
Acoustic velocities of tap water and polymer solution were studied using ultrasonic-pulse reflection method in the laboratory. Polymer density and apparent viscosity were measured.
采用脉冲反射法在实验室条件下对自来水和不同浓度聚合物溶液的声速进行了测量研究，经测量得到了聚合物溶液的密度、表观粘度。
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