例句與造句

1. the tensile steps and the tensile forces during construction stage of prestressed strands are confirmed for decreasing the secondary bending moment along the axial of penstock . 2 . the formulas of internal forces of prestressed concrete penstock with or without steel liner are given based on the elastic plane strain theory of axisymmetric multilayer cylinders and the mechanism of the ring-like strands action
   根據(jù)環(huán)形預(yù)應(yīng)力作用機理，結(jié)合多層圓筒軸對稱平面形變理論，導出了全部預(yù)應(yīng)力作用效應(yīng)的計算公式，提出了預(yù)應(yīng)力混凝土壓力管道和鋼襯預(yù)應(yīng)力混凝土壓力管道運行階段的驗算方法，并確定了相應(yīng)管道結(jié)構(gòu)的極限承載能力設(shè)計方法。
2. It's difficult to find multilayer cylinder in a sentence. 用multilayer cylinder造句挺難的