求翻译：对于刚体和弹性体的物理特性和建模方法已有比较成熟的理论，而对于柔性体的物理特性和建模方法尤其是对于布条、海带条这种具有高度柔性的材料尚没有完善的理论，本文通过实验对布条、海带条的物理特性进行研究，探究柔性体的建模方法。是什么意思？

For the rigid body and the physical properties of the elastomer and the modeling approach has a more mature theory, the physical characteristics and modeling of the flexible body, especially cloth, kelp Article This highly flexible material is no sound theoretical experiments on the physical propert