例句與造句

1. Doctor candidate : yan qiwu supervisor : prof . slien pllsheng iii this thesis , a systematic theory on spatial elastic - plastic time - history analysis of reinforced concrete frame - tube structures tinder strong multiple earthquake excitations is established . covering problems about materal , rnember and structural system considering about the nonlinearity of material , geometry and boundary
   木文考慮了材料、幾何、邊界非線性，建立了從材料、構(gòu)件到結(jié)構(gòu)的一個較為系統(tǒng)的鋼筋砼框筒結(jié)構(gòu)在多維地震波作用下的空間彈塑性時程分析理論。
2. It's difficult to find multiple earthquake in a sentence. 用multiple earthquake造句挺難的