The structure and properties of flat section and circular polyester filament were studied through measuring birefringence, sonic modulus and workcoefficient ect.
对扁平形聚酯纤维和圆形聚酯纤维的结构和性能进行了研究。
2
The coefficient of heat conversion from plastic work to heat can be indirectly measured.
可以间接对材料的塑性功热转换系数进行测试；
3
The correction coefficient needs to be adopted to calculate the determinated value of work curve, it simplifies the operation, reduces error and enhances the accuracy and precision.