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为满足高温连续精密超声测量的需要，本文选择了几种超声耦合剂并系统研究了它们的透声性、耐温性和挥发等性能。
In order to meet the needs of high-temperature continuous precision ultrasonic measurement, several ultrasonic couplers were selected and their performances of permeability, temperature resistance and volatility were systematically studied.