The second-order shear of the basic flow represents an instable factor for the symmetric disturbance, and drives the unstable mesoscale disturbance to travel in the meridional direction;
基流二次切变对于中尺度对称扰动来说是一个不稳定因子，并且驱动不稳定的中尺度对称扰动在南北方向传播；
One dimensional shear strain rate gradient formation of the second order is proposed based on the non-local continuum model.
根据非局部连续介质模型，提出了一维二阶剪切应变率梯度格式。
In the present paper we studied the bulk modulus, shear modulus and second-order elastic constants as a function of temperature.
本文研究了体积弹性模量、剪切模量、二级弹性模量与温度间的函数关系。
The second order effects enlarge the requirement of top displacement and story drift and diminish that of base shear.
二阶效应增大了结构的顶点位移最大值和层间位移角最大值，减小了结构的基底剪力最大值。
Furthermore, the second-order effect and shear deformation of the structures were magnified due to semi-rigid connections, the ultimate load resistance of the structures was reduced simultaneity.
半刚性连接还对结构的二阶效应及剪切变形的影响起放大作用，降低结构的极限承载力。
Furthermore, the second-order effect and shear deformation of the structures were magnified due to semi-rigid connections, the ultimate load resistance of the structures was reduced simultaneity.
半刚性连接还对结构的二阶效应及剪切变形的影响起放大作用，降低结构的极限承载力。
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