翻译成英文：最后，扭热系数的概念可以推广到形状记忆合金纤维和复合材料纤维领域，为建立描述合金纤维或复合纤维扭热效应的理论模型提供了新的思路，对开发多种纤维材料扭热制冷的新应用具有重要意义。

### 回答1：
Translation: Finally, the concept of torsional coefficient can be extended to the field of shape memory alloy fibers and composite fibers, providing a new idea for establishing a theoretical model to describe the torsional effect of alloy fibers or composite fibers, and has important significance for the development of new applications of torsional refrigeration of various fiber materials.

### 回答2：
Finally, the concept of twist heat coefficient can be extended to the field of shape memory alloy fibers and composite material fibers, providing a new approach for establishing theoretical models to describe the twisting heat effect of alloy fibers and composite fibers. This is of great significance for the development of new applications of twist heat refrigeration in various fiber materials.

### 回答3：
The concept of torsional hysteresis can be extended to the field of shape memory alloy fibers and composite material fibers. This provides a new approach for establishing theoretical models to describe the torsional hysteresis effect of alloy fibers or composite fibers, and it is of great significance for developing new applications of torsional hysteresis cooling in various fiber materials.