计算公式

A graphic solution to ensuring the protection range of lightning rod is put forward instead of the complicated formulas,and the methods are discussed of the protection zone of single lightning rod,double and four lightning rods.

针对避雷针设计过程中计算公式过于复杂的问题，提出了利用平面几何作图求解避雷针联合保护范围的方法，给出了单支、双支和四支避雷针保护范围的作图解题步骤，并利用计算机图形仿真，给出了避雷针保护范围的空间结构图形。

Starting from the Laplace equation, the solution of Laplace equation, in spherical coor dinates, is developed for the boundary value problem approximating the local gravity field over a spherical cap——spherical cap harmonic analysis, and the spherical cap harmonic expansion with integral order but nonintegral degree and practical formulae are given.

从Laplace方程出发，提出了在球冠上逼近局部重力场的大地测量边值问题——球冠谐分析理论，给出了非整阶整次球冠谐展开和实用计算公式。

On the basis of which,a new method of turning involute helicoid worm as turning straight sided axial worm is put forward.

本文推导出了渐开线斜齿圆柱齿轮轴向齿廓的计算公式，并在此基础上提出了用车削阿基米德蜗杆的方法车削渐开线蜗杆的新方法。

Applications of homogeneous coordinates in the variable system classifications of structures;2. According to the homogeneous coordinate transition,we deduce the formula for computing target pose under the absolute coordinate system an.

在此基础上，进一步建立空间动态目标全姿态激光跟踪测量的模型，基于空间坐标系的齐次坐标变换，推导出目标分别在绝对坐标系和相对坐标系下的姿态计算公式。

From the points of view of hydrokinetics, put forward the formula for movement parameters of set-out stage and short-range stage, lay a solid foundation for the theory of hydrokinetics mechanisms of large highspeed rockslide, offer the theoretical proof for the reconnaissance and design of large hydraulic power project, railway and highway, gain the ends of preventing and decreasing the disastes.

在试验研究的基础上，从流体动力学的观点出发提出了大型高速岩质滑坡启程和近程活动阶段运动参数的计算公式，为大型高速岩质滑坡全程流体动力学机理理论的建立奠定了良好的基础，为大型水电工程的勘察设计和铁路、公路新线勘察设计提供理论依据，达到防灾减灾的目的。

Basic principles of hydromechanics applied, a formula to calculate the parameter of the distributing plate is deduced.

应用流体力学基本原理，得出了形成稳定液位的分布板结构设计的计算公式。

In a lot of fields, such as robot navigation, video surveillance, and site modeling, etc, there are needs to obtain the omnidirectional depth information of scene in real-time. In this paper, a method to realize panoramic stereo imaging utilizing two coaxial hyperboloid catadioptric cameras is presented, and its depth computational formulae are derived.

为满足机器人导航、视频监视和场景建模等领域实时获取全景深度信息的需要，提出了一种利用2个双曲面折反射相机同轴放置实现全景立体成像的方法，并推导了这种全景立体视觉系统的深度计算公式。

Menthods: 43 patients were divided into two groups. One group (20 cases) was treated by reduction by putting pillow, and the other (23 cases) was treated by reduction of hyperextension and external fixation.

将43例胸腰椎压缩骨折患者随机分成两组，一组应用垫枕治疗法，另一组应用过伸复位外固定法治疗，我们设计了新的伤椎压缩率和复位率的计算公式进行比较。

First,a formula to calculate the normal vector of any hyperplane is given and a mixing matrix recovery algorithm based on the normal vector of any hyperplane is proposed.

首先给出了m维超平面的法矢量的计算公式，提出了一个基于超平面法矢量的矩阵恢复算法。

The wavelength and amplitude of the buckling deformation were deduced. It can be concluded that the Young's modulus of epidermis, dermis and hypodermis tissues had great effect on the wavelength and amplitude.

给出了屈曲波长和振幅的计算公式，并对结果进行了分析，可看出真皮及皮下组织的弹性模量对皱纹的波长和振幅影响较大。

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％。