Adiabatic temperature changes testing is one of the most important way to evaluate the cooling ability of the material.

评价一种磁性制冷材料的性能好坏，对其进行绝热温变测试是很重要的一步。

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The samples' structures were characterized by using powder-X-ray diffraction (XRD) and the samples' morphologies were observed with SEM and the adiabatic temperature changes were determined directly.

用粉末X射线衍射表征材料的相组成，用扫描电镜(SEM)观测样品形貌，用直接法测量材料的绝热温变。

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And you already saw last time there was this relationship between the temperature and volume changes along an adiabatic path.

是条绝热路径，而上次你已经看到，沿着绝热路径温度和体积，的变化有这个关系。

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And you already saw last time there was this relationship between the temperature and volume changes along an adiabatic path.

是条绝热路径，而上次你已经看到,沿着绝热路径温度和体积,的变化有这个关系。

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