采用弹性球-弹性杆的纤维运动模型，建立了纺粘法生产断裂纤维的运动方程；
The motion equation of spunbonded broken fiber was established using an elastic sphere-elastic rod motion model.
比较分析了各种计算GDP就业弹性的方法，认为采用双对数计量模型是测算就业弹性的最好方法。
Based on a comparison of different ways for estimating employment elasticity of GDP, this paper concludes that the double logarithm model is the best method.
粘弹性阻尼器采用开尔文模型，将其对结构的作用看作是位移和速度的反馈控制。
The viscoelastic damper was described by the Kelvin model and its action to the platform was regarded as the feedback of displacement and velocity of the response.
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