计算公式

Structural natural period s are important indexes to reflect on absorbed seismic energy, a formula for structural frequency is deducted according to variation principle in this paper, various ap.

结构自振周期是直接反映结构吸收地震能量多少的重要指标，本文基于能量变分原理推导了结构频率的计算公式，介绍了工程中计算结构自振周期常用的几种近似方法，讨论了影响结构自振周期的主要因素。

The influence of arrangement of the anti-sideways elements on the structural tor- sion was discussed. The formula of structural torsion stiffness was given. The method to decrease the structural torsion effect was found.

考察了抗侧力构件布置对结构扭转效应的影响，给出了结构抗扭效应近似计算中扭转刚度的计算公式，通过参数分析，分析了结构抗扭刚度的影响因素，指出了减小结构抗扭效应的途径。

The traditional method of analysis of RC structure is based on experiental formula which are concluded from large number of experiments.

钢筋混凝土结构分析和强度计算，传统方法是采用建立在大量试验研究基础上的简化计算公式。

The traditional method of analysis of RC structure is based on experiential formula, which are concluded from large numbers of experiments.

钢筋混凝土结构分析和强度计算，传统方法是采用建立在大量试验研究基础上的简化计算公式。

Chapter 7 at first introduces the elementary theory of subentry coefficient designing methods and deduces the calculational formula of single safety factor considering the reliability, then propounds the numerical calculation method of random safety factor to make foundation for deep investigation.

第七章先介绍了分项系数设计法的基本原理，推导了可靠性意义下的单一安全系数的计算公式，然后提出了随机安全系数的数值计算方法，为进一步研究随机安全系数打下基础。

In the forward balanced modelling by suppe′s approach, the fault shapes can be any curves, and its corresponding calculation formula is also derived out.

在Suppe法的正演平衡计算中，把断层形态扩充为任意曲面，并推导出相应的计算公式。

With this system, the airplane s taking-off and landing track were measured, the method to decide the position of the system was induced.

采用飞机起落航迹激光定位系统对多种飞机起飞着陆航迹进行了测试，归纳出了应用该系统时测站的选点与定位方法，提出了系统不同轴与时差校正的计算公式，给出了相应的数据转换方法，并编制了相关的计算软件。

Furthermore, the paper uses the pyrology calculational formula to estimate the temperature of torpedo cars body inside and ektexine. It also provides significative results and concretes analysis methods.

利用热工理论计算公式对混铁车罐体的内衬及外壁温度进行了估算，给出了一些有意义计算结果，并提供了具体的分析方法。

To make use of finite element method, the field of electromagnetic wave propagating in trapezium tunnel was studied. The attenuation rate and its numerical analysis were deduced on the foundation of tiny-intervene method and the calculating program was also compiled.

应用有限元方法研究了梯形隧道中的波导场问题，并以微扰法为基础推导了波模衰减率的计算公式，编制了计算程序。

Formulas for calculating internalforces and displacements under the action of lateral forccs, concentrated at thetop, uniformly distributed along its rise or triangularly distributed, are then.given.

与此同时，着重研究了基于单连杆计算图式的简捷分析法，给出了经修正后的内力位移简捷计算公式以及它们的适用范围。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。