例句與造句

1. This paper conducts a study of nonlinear stability behavior of a long - span prestressed concrete rigid - frame bridge at cantilever construction stage respectively by means of buckling , collapse theories and 3d nonlinear digital models , discusses the stability characteristics of other similar bridges at the same construction stage , and also generalizes some helpful conclusions
   摘要分別采用屈曲理論和壓潰理論，利用三維非線性數(shù)字模型，研究了懸臂施工階段大跨度預(yù)應(yīng)力混凝土剛構(gòu)橋的非線性穩(wěn)定行為，探討了同類橋梁懸臂施工階段的穩(wěn)定性，得出了一些有益的結(jié)論。
2. It's difficult to find collapse theories in a sentence. 用collapse theories造句挺難的