1) isocur-vature perturbation
等曲率扰动
1.
We will also in this paper study the isocur-vature perturbation of the baryon number in our model.
另外还详细地计算了重子数等曲率扰动。
2) unitarily invariant norms
扰动等式
1.
By the method of singular value decomposition, the perturbation identities of Q and H under the unitarily invariant norms were obtained.
研究m×n(m≥n)且秩为r的复矩阵A的广义极分解A=QH,其中Q为m×n次酉矩阵,H为n×n半正定矩阵;利用奇异值分解的方法,给出了在任意酉不变范数下Q和H的扰动等式。
3) equivalent disturbance
等价扰动
1.
The uncertain term, called equivalent disturbance, contains model parameters’ deviations, load torque disturbance, et al.
将d-q轴下的PMSM模型转换为标称模型与不确定项和的形式,将模型参数偏差、负载转矩变化等均作为扰动包含在不确定项中,并称之为等价扰动。
4) constant-curvature wells
等曲率井
1.
The governing differential equilibrium equations of the quasi-static loading model for nonlinear helical buckling of tubing in constant-curvature wells are solved by the finite element method.
采用有限元法对等曲率井中钻柱非线性螺旋屈曲准静态加载模型的控制微分方程进行了求解,对准静态加载模型的合理性进行了数值验证,力学模型中考虑了钻柱的重力,澄清了钻柱螺旋屈曲特征值问题和准静态加载问题的理论基础。
2.
The equilibrium equations and the potential energy function of tubing buckling with weight in constant-curvature wells are derived.
建立了等曲率井中有重钻柱屈曲的平衡方程及对应的泛函表达式,用有限元法对等曲率井中有重钻柱屈曲过程进行了分析,给出了钻柱正弦屈曲和螺旋屈曲临界载荷的定义。
5) surface of constant surface
等曲率面
6) Equal curvature
等曲率
补充资料：长等短等
1.犹言左等右等。谓等待久。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条