phase change disc

例句：

1. 1.The phase change disc is used to detect the temperature changes in the material.
   相变碟片用于检测材料的温度变化。
2. 2.The thermopile is a device that uses the phase change of a substance to measure temperature.
   热电偶是一种利用物质的相变来测量温度的设备。
3. 3. The thermocouple disc is a small device that can detect the temperature difference between two points on a surface.
   热电偶盘是一种可以检测两个表面点之间温差的小设备。