角系数

Based on point explosion theory , the approximate analytical formulas of momentum coupling coefficient and impulse of cone and parabolic crafts are deduced. The results show that the total axial impact momentum for parabolic craft is larger than that of cone craft and it increases with the increase of half open angle.

以LSD/LSC波理论为基础建立了一个近似的理论解析模型，推导出圆锥形和抛物形飞行器获得的冲量及冲量耦合系数的近似解析表达式，公式表明冲量耦合系数随着半张角的增加而增加，同时抛物形飞行器要比圆锥形飞行器的动量汇聚效果好。

On the basis of these results, the relations of total-pressure recovery coefficient or flow coefficient and flight mach number, angle of attack and the second movable wedge angle of the inlet have been founded by hypersurface fitting, then the mathematical model of the inlet is established.

根据流场计算结果并利用超曲面拟合方法建立了进气道总压恢复系数、流量系数与飞行马赫数、进气道攻角及二级可调斜板角度之间的关系，由此得到了二元混压式超声速进气道数学模型。

The boundary layer edge conditions and the resistance and lift force coefficient in different Mach number and different angle of attack are worked out. Results of the method are in good agreement with the aerodynamics rules.

从而得到了边界层的外缘参数，计算出了弹丸在不同马赫数和不同攻角下的阻力系数和升力系数，分析结果符合空气动力学的基本规律。

The scattering and absorption coefficient values measured by the D-OPC were compared with that measured by an Aethalometre and an Integrating Nephelometer.

与TSI公司黑炭仪和浊度计测量的吸收系数和散射系数对比表明，双散射角光学粒子计数器测量气溶胶折射率和谱分布结果合理，测量误差0%，可以满足同时测量气溶胶粒子谱分布和折射率的需要。

Luneberg lens is a spherical lens which its permittivity varies with normalized radial coordinates. It is fabricated by using different homogeneous dielectric centrically layered media. The lens can focus a parallel beam of rays from any direction exactly at a point on the surface. If it is made by adding a reflecting surface "metallic cap", it is called Luneberg lens reflector. It can reflect incident wave into plane wave in incoming direction. It is usually applied in antenna, radar reflector,satellite-based, and mobile-communucation.

龙伯球透镜为一种介电系数与半径成一固定比例的球形透镜，大部分是由数层不同介电系数介电质组合而成，而其主要特性能够把入射波聚焦到球表面一点，假使在透镜表面处镀上一圆锥角金属层即为龙伯球透镜反射器，能把入射波依平面波的型态反射回原入射端，通常用於天线、雷达、卫星通讯、军事等方面。

In rectilinear motion,the extremum of pullvaries with the factor;angleθ=α=arctgμ(μ:friction factor;angleθ:the angle between the direction of pull and the motion direction).

在直线运动中拉力 F的极值随摩擦系数μ的变化而变化，当θ=α=arctgμ(μ为摩擦系数，θ角为拉力 F和运动方向的夹角)时，F有极小

Aiming at the research of general scroll profiles and its shape optimization,the coefficient parameter transformation characteristics of general arc functional scroll profiles based on instinct equation oftangent angle coefficient was studied.

针对通用涡旋型线设计及其形状优化，研究了基于切向角参数固有方程的弧函数通用泛函涡旋型线的系数参数变换特性，通过对各系数参数的单独特性分析，掌握了泛函弧函数涡旋型线在各个阶段的特性及其在整个阶段的共性。

Then calculates clearances in radius direction for all kinds of nonparallel degree between input shaft and output shaft, and presents conditions of adjustability. Applies the experimental device, which is developed for this paper research, as example, introduce calculation formulation of overlapping coefficient and pressure angle while the distance between two centers is uncertain, in this way, we get the range of the center distance.

以本论文的实验研究装置为例，引入了中心距不确定状况下的重迭系数、压力角等计算公式，以两齿轮啮合时的分度圆不能相割为最小中心距，以两齿轮啮合的重迭系数不小于1为最大中心距，从而得到相应的中心距范围。

Factors affecting wind deflection caused discharge include wind speed, wind pressure ununiformity coefficient ,induded angle between wind and conductor,and transmission line parameters,etc.

风偏放电的影响因素有风速、风压不均匀系数、风与导线夹角、输电线路的参数等，通过对这些因素的逐一分析，明确了风速、风压不均匀系数和垂直档距对绝缘子风偏角影响较大。

The results show that there is a good relationbetween slope rockmass quality,which depends onrebound value,grip coefficient,apparent block sizeand ground water,and slope height and angle.

统计分析表明，由回弹值，岩块咬合系数，视块度以及地下水影响系数所建立的边坡岩体质量 BYZ(BYZ=R·E·D·W)与边坡高度，坡角有明显的相关性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新