钢筋极限拉应变
steel ultimate pulling strain
哦拉哦拉肝硬症
Walla Walla hard liver disease
欧拉动力学方程
Euler’s dynamics equation
euler dynamical equations
欧拉动弯曲问题
Euler’s dynamically bucking problem
Mathieu equation
Euler’s Dynamically Buckling problem
欧拉格式
the improved Euler method