by-level造句

• This paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges , which is transformed into a clear math program by - level cut - set . by the solution of the clear math program , a succession of reasonable prestressing moments can be obtained . then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections . based on this , a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
  建立预应力混凝土连续梁桥预应力度的模糊优化问题，按-水平截集解法，将模糊优化问题转化为确定性的数学规划问题.求得一较合理的消压弯矩后，只需按控制截面的构造进行预应力体系设计.在此基础上提出了配束自动化的基本思想，并以一实例说明其理论应用
• Abstract : this paper sets up a fuzzy optimum math - model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges , which is transformed into a clear math program by - level cut - set . by the solution of the clear math program , a succession of reasonable prestressing moments can be obtained . then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections . based on this , a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it
  文摘:建立预应力混凝土连续梁桥预应力度的模糊优化问题，按-水平截集解法，将模糊优化问题转化为确定性的数学规划问题.求得一较合理的消压弯矩后，只需按控制截面的构造进行预应力体系设计.在此基础上提出了配束自动化的基本思想，并以一实例说明其理论应用