计算公式

The formula can be used in approximate calculation of instable critical load of high pier in the design and construction.

本文利用能量原理的Ritz法，在对截面惯性矩变化作线性假定后，推导出变截面空心薄壁高墩失稳临界荷载近似计算公式，可用于设计施工中对高墩失稳临界荷载的近似计算。1中心压杆稳定理论及能量原理中心压杆的失稳问题是稳定问题中的一个最基本的问题。

The formation situation of the band for transition metallic carbonyl cluster compounds is analysed with the bond valence formula for atomic cluster compounds.

本文运用原子簇化合物键价计算公式，对过渡金属羰基簇合物成键情况进行了分析，利用金属键轨道数，价非键轨道数和金属配体成键轨道数计算簇合物价轨道总数。

The formulas for calculating the bifurcation ratios and the way to determine the location of bifurcation point were presented.

进行血液动力学模拟和血液传热计算需要先建立血管网络，为此，借鉴强制结构优化方法，提出了基于分支法则、Poiseuille＇s law及质量守恒原则，直接在模拟区域上生成动脉血管树的新方法及相应的半径比计算公式和分支点确定步骤。

According to Biot-Savart law,the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper,which further discusses the magnetic field in the plane,the central axis and the far space.

直接由毕奥-萨伐尔定律的计算公式，在更为普遍的情况下，计算出了圆形线电流在全空间的磁场分布，并进一步讨论了其在中心轴线上、平面内及远区的磁感应强度。

Two main aspects of the research work are as follows:(1) The paper introduces the experimental ice forces on semi-circular breakwaters which is made by State Key Laboratory of Coastal and Offshore Engineering of Dalian University of Technology and calculate the ice value for different radius semi-circular component, based on which it speculates on that horizontal ice value and water level accord with biquadratic polynomial function, meanwhile, the paper analyses incidence of ice heap to horizontal ice value of semi-circular component.

论文的主要工作有三部分：(1)主要介绍大连理工大学海岸和近海工程国家重点实验室所做的物理模拟试验，应用水平冰力计算公式计算了不同半径半圆型构件的冰力值；根据这些数值的分析，推测半圆型构件水平冰力与水位符合四次多项式函数关系；同时分析了碎冰堆对半圆型构件水平冰力影响。

And from the development of automatic block both at home and abroad, the frequency type automatic block and cab signal seem to be the best.

从满足轨道电路的四条基本要求出发，作者提出使用不同信号周率时的比较标准和计算公式，列出计算结果和曲线，说明频率式自动闭塞和机车信号采用亚音频的周率范围最为合宜。

Based on the bond energy model of nanoparticles and the relationship between cohesive energy and vacancy formation energy, the expressions for the vacancy formation energy and the vacancy density of nanoparticles have been derived.

6基于纳米微粒结合能的键模型，再根据结合能和空位形成能的关系，推导出了计算自由表面纳米微粒空位形成能和空位浓度的计算公式。

It enlarges the range of quasi-linear Born approximation, and makes the prestack depth migration method based on quasi-linear Born approximation to be able to adapt strong lateral velocity variation.

在散射波场计算中，使用了一个更稳定的散射波场计算公式，扩大了拟线性Born近似的应用范围，使基于拟线性Born近似的叠前深度偏移方法能够适应更强的横向速度变化。

The rolling force and energy calculation equition for 42CrMo steel was carried out by practically measured technical parameters and theoretical math model and based on the analysis of the process and equipment abilities in the Alloy Bars Factory, Special Steel Brach,BaoSteel Co.,Ltd. The optimized technology was further determined for 42CrMo steel rolling with cooling.

摘 要：本文在分析了宝钢股份公司特殊钢分公司合金钢棒材分厂的生产工艺和设备能力基础上，通过现场实测的工艺参数并结合理论计算模型，建立了42CrMo钢的轧制力能参数计算公式，确定了42CrMo钢的降温轧制的优化工艺。

In this paper, the application of the free body diagram of the duo two leading shoe brake to analytic method, a new calculating formula has been established, it provide a kind of effective and convenient calculating method for calculation of the duo two leading shoe brake.

本文给出了图解法求得的双向自增力式制动器的受力图，并据此推得双向自增力式制动器的受力计算公式，并为其受力计算提供了一种有效而简便的方法。

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％。