首次直接观测到了热膨胀的动态过程并摄下了膨胀的驰豫曲线。

For the first time, the dynamic-process of thermal expansion was observed directly and the oscillograms of the relaxation curves of thermal expansion were obtained.

youdao

首次直接观测到了热膨胀的动态过程并摄下了膨胀的驰豫曲线。

For the first time, the dynamic-process of thermal expansion was observed directly and the oscillograms of the relaxation curves of thermal expansion were obtained.

youdao