将反射式光纤位移传感器应用于固体线膨胀系数测定仪，可以较精确地测定金属线胀系数。
The system consisting of optical fiber displacement sensor and solid linear expansion coefficient apparatus, is used to measure the linear expansion coefficient of metal.
提出了冲击该、气体膨胀压和反射拉伸波在破岩过程中各自所起的不同作用。
The different effects of shock wave, gas expansion pressure, reflected extension wave are put forward.
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