structural dynamic equation的用法和样例：
例句
- Dynamical characteristics of the cantilever beam were analyzed and its dynamical equation was developed by using PEA.
采用有限元分析方法研究悬臂梁的动态特性，建立其动力方程。 - By means of time scales, this paper established some oscillation theorems for the second-order nonlinear delay dynamic equation on time scales.
摘要借助时间尺度的有关理论，研究了一类二阶非线性时滞动力方程解的振动性。
