例句與造句

1. Considering the characteristics of internal force and structures of simply supported pc bridges , a novel automatically step - up method ( asum ) , taking into account the influence of steel arrangement , steel ratio , stress losses of tendons and time - dependent concrete modulus , to analyze creep and shrinkage effects is presented . this method accepts all kinds of expressions of creep and shrinkage , and it is easy to calculate total stress , strain of concrete and steel and deflection of bridge at any time , the expected prediction accuracy will be obtained by further dividing the time - step within duration
   首先，針對(duì)預(yù)應(yīng)力混凝土簡(jiǎn)支梁橋的受力特征和構(gòu)造特點(diǎn)，提出了徐變效應(yīng)分析的全量形式自動(dòng)遞進(jìn)法，可考慮截面上鋼筋位置、配筋率、預(yù)應(yīng)力鋼筋松弛、混凝土彈性模量隨時(shí)間變化等影響，且計(jì)算式可適用于任何形式的收縮、徐變特性表達(dá)式；建立的公式可方便地求解任意時(shí)刻混凝土、鋼筋的應(yīng)力與應(yīng)變和跨中梁體的豎向變形，計(jì)算精度可方便地通過(guò)計(jì)算時(shí)段的細(xì)分來(lái)控制，直至給出滿意的結(jié)果。
2. It's difficult to find step-up method in a sentence. 用step-up method造句挺難的