structural seismie design的用法和樣例：
例句
- For a system with a fundamental natural period in the long-period range, maximum displacement governs the seismic design.
對于長(cháng)周期結構，地震最大位移反應是結構抗震設計的控制因素。 - The natural frequency is an important parameter of building, it reflects the structural dynamic feature and lays the foundation of seismic design.
頻率是結構固有的重要參數，它反映了結構的動(dòng)力特性，也是結構抗震設計的重要基礎。
