·2,447,543篇论文数据，部分数据来源于NoteExpress
The substructure method was introduced to set up mathematical model of finite periodic composite structure, to solve its wave equation, and to derive its time-average power flows.
采用子结构法，建立了有限周期复合结构的数学模型，求出了数学模型的波动解，并推导出模型的时间平均功率流。
youdao
应用推荐
模块上移
模块下移
不移动