The relationship between bending elasticity, linear density and degree of hollowness was deduced, as was the difference in bending elasticity.

• 通过建立力学模型,比较一系列圆形中空涤纶弯曲弹性,导出不同圆形中空涤纶弯曲弹性、线密度、中空度的关系及其弯曲弹性的差异。