仔细地研究了热光栅的弛豫过程，并由此得到液晶的热扩散常数。
The relaxation process of the thermal grating is carefully investigated and the thermal diffusivity of liquid crystal is consequently obtained.
仔细地研究了热光栅的弛豫过程，并由此得到液晶的热扩散常数。
The relaxation process of the thermal grating is carefully investigated and the thermal diffusivity of liquid crystal is consequently obtained.
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