under action of earthquake的用法和樣例：
例句
- The results provide a reference for cracking analysis of tunnels under seismic action.
研究結果可為結構在地震作用下的開裂分析提供參考。 - The most unfavorable earthquake excitations were investigated, in which geometric non-linearity and material non-linearity were all taken into account.
摘要同時考慮幾何非線性與材料非線性，對單層球面網殼在地震作用下結構的最不利荷載進行分析。
