The centerline of elastic rod or elasticfilament can be abstracted as space curves to deal with them by the knowledge of the theory of space curve and differential geometry.
由于弹性杆的中心线或弹性细丝可以抽象成空间曲线，然后根据空间曲线论和微分几何的知识进行处理。
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This paper introduces the key step of fully shrinking for suitable elasticity in cheese dyeing of PTT filament core-spun elastic yarn and staple blended yarn.
An experimental research on the measurement of elastic modulus of metal filament is made with the laser holographic scattered-spot interference method.