practical formula中文什么意思

例句与用法

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1. Using the analysis method , the calculating method and practical formula of transverse and longitudinal column effective length coefficient of staggered truss framing have been done systematically and completely at the first time
   本文采用解析法，首次全面系统地推导出错列桁架体系横向和纵向柱子计算长度系数的计算方法和实用计算公式。
2. The load stress and the thermal stress of concrete pavement with lean concrete base are analyzed by three - dimensional finite element method , and the practical formulas of load stress under different axle load models and of thermal stress are get by regression method
   利用三维有限元方法对贫混凝土基层混凝土路面进行了荷载应力和温度应力的大量计算，通过回归，得出了贫混凝土基层混凝土路面荷载应力及温度应力实用计算公式。
3. When the axis force p is much greater than the moment m , the out - of - plane column - instability mode is dominated . otherwise , the in - plane instability mode of the beam - column is dominated . at the end of this part , the practical formula of box section beam - columns is suggested which avoid the incorrect concept of
   最后对数据进行分析、拟合，得到了实用的计算箱形柱压弯构件承载力的计算公式，并消除了规范中稳定系数罗_ b > 1 . 0的概念错误。
4. First , the basic mechanical capability and creep were proceeded on the material test system with the modified three point bending creep fracture test . the modulus and fracture toughness and tensile strength was attained and creep curve in 200 temperature was also presented . applying basic damage mechanical theory , thermal damage analyses were performed induced in fracture toughness and modulus , the practical formula of damage factors varying with temperature and time was given
   首先利用改进的三点弯曲试验在mts实验机上进行了岩石力学性能和蠕变测试，得到了花岗岩在温度影响下的弹性模量和断裂韧度以及抗拉强度变化规律，并得到了200下北山花岗岩蠕变全过程曲线。
5. Once again , contraposing the specific case in engineering strengthening and the shortcoming in the strengthening concrete norm , the author puts forward modified means that designer should examine the internal force after esmating the prestressed tension rod sectional area and deduce the practical formula used in the examining
   再次，针对加固规范和工程设计不完善的情况，提出了先估算后较核的改进办法，并推导出较核中易用的预应力等效弯矩、轴力的计算公式。