ferroelectric hysteresis loop

例句：

1. 1. The ferroelectric hysteresis loop of the material is crucial for its performance.
   这种材料的铁电滞回线对其性能至关重要。
2. 2.The researcher found that the hysteresis loop of the material was significantly different from that of other materials.
   研究者发现，这种材料的滞回环与其它材料显著不同。
3. 3. The engineer used a special device to measure the hysteresis loop of the material under various conditions.
   工程师使用一种特殊的设备来测量这种材料在不同条件下的滞回环。