practical formulation造句

With combined effort in theoretical analysis and fem , the author studied engineering mechanism and distortion character , under vertical load , of rc bi - direction cellular slab , and put forward some ideas on construction design and practical formulations
本文通过理论分析和有限元方法相结合，研究了钢筋混凝土双向空腹板在竖向荷载作用下的受力机理和变形特征，并提出了一些设计建议和实用公式。
Starting from virtual work principle , with the combination of fem , the author led into elastic stiffness practical formulation of bi - direction cellular slab . after comparing the bi - direction elastic stiffness formulation with the approximately stiffness formulation , the author drew such a conclusion that if the hole - rib is comparatively big , the elastic stiffness of bi - direction cellular slab calculated by approximately formulation would be comparatively small , and therefore the elastic stiffness could calculated by the formulation illustrated in this paper
本文从虚功原理出发，结合有限元方法，给出了双向空腹板的弹性刚度实用计算公式，并与近似刚度公式进行对比分析，并得出结论：在双向空腹板孔间肋较大情况下，利用近似公式计算双向空腹板的弹性刚度偏小，可按本文提出的弹性刚度公式进行计算。
It's difficult to find practical formulation in a sentence. 用practical formulation造句挺难的