solid angle

1. The conclusion that integration of solid angle for lateral surface of a cylinder can be turned into integration for bottom surface is applied to change the integral equation into discrete equation.
   利用柱侧面对空间某点所张立体角的积分可转化为柱底面对空间某点所张立体角积分的结果，将电测井积分方程离散化。
2. The solid angle is this component divided by the square of the length of this line.
   立体角就是这个分量除以这条线的长度的平方。
3. Study on Ray-tracing Simulation in Solid Angle Way and Parallel Computation with Frequencies and the Application in Auditorium Acoustics Design
   厅堂音质设计中声线模拟立体角分频并行计算和应用研究
4. Light collecting efficiency of PMT in the position is in proportion to solid angle of the PMT at the position.
   光电倍增管对于某位置的光收集效率与光电倍增管对此位置所张的立体角成正比。
5. The brightness or luminance of an object is defined as the luminous flux emitted per unit area of the object into unit solid angle.
   物体的亮度或发光率定义为物体面积发射到单位立体角内的光通量。
6. Lumen: The unit for measuring luminous flux. One lumen is the flux emitted in one solid angle by a point light source of one candela.
   流明：量度光通量的单位。1流明是由1烛光的点光源在1立体角内所发出的通量。
7. The ratio of the flux emitted within the solid angle defined by the beam spread, to the bare lamp flux.
   由光束角限定的立体角内辐射出的光通量与裸光源光通量之比。
8. Calculation of solid angle of pixels of IRFPA detector under circular cold shield and its imaging simulation
   圆形冷屏下红外焦平面探测器光敏元立体角的计算及其成像仿真
9. It was found that the coherent length became shorter and the spectrum resolving power became lower as a result of solid angle produced by the extended light source.
   分析表明，扩展光源存在的立体角导致系统的相干长度变短，光谱分辨率降低。
10. Comparison of direct and indirect methods for solving solid angle coefficients
    直接法与间接法求解固角系数的比较
11. Using the grid ionization chamber method and small solid angle method, the number of 238 U nucleus in the highly pure U 3O 8 sample is determined.
    用屏栅电离室法和小立体角法测量了高纯度U3O8样品中的238U核素数目。
12. Using the solid angle that a closed surface opens to an outer point of that is zero, the integration for lateral surface of a cylinder has been changed into the integration for the bottom surface under the cylindrical boundary condition, which has been turned into elliptic integration.
    利用任意闭合曲面对曲面外任一点所张立体角为零的特点将柱状边界条件下对柱侧面的积分转变为对柱底面的积分，并将其表示成椭圆积分的形式。
13. Development of a set of low temperature and small solid angle alpha spectrometer
    低温小立体角α谱仪的研制
14. The Solid Angle Revision of the Magnetic Field Integral Equation with Linear Triangle Basis Functions in Moment Method
    磁场积分方程矩量法中基函数的立体角修正
15. Study about Gas Discharge at Solid Angle and Emulsion Drive Fan Equipment
    上隅角瓦斯排放乳化液驱动风扇装置试验研究
16. The ideal cosine entrance system is required for measuring the total radiation of the solar including the direct radiation and the diffuse radiation over a solid angle of 2 π steradian on the surface of the Earth.
    为了满足包括太阳直射和天空散射在内的2π球面度立体角范围的入射光线的测量需求，要求太阳紫外光谱辐射测量装置的入射光学系统必须具备较好的余弦响应特性。
17. In this paper, we expand the well-known Poincare-Bertrand formula in the complex function theory to the general replacement formula of singular integral of Bochner-Martinelli type which contains the solid angle coefficients α(ζ) of the point ζ on a closed piecewise C ( 1) smooth manifold.
    本文把复变函数论中著名的Poincare-Bertrand公式拓广到闭逐块C（1）光滑流形上Bochner-Martinelli型奇异积分的含有点ζ的立体角系数α（ζ）的更一般的置换公式。
18. The results could be used in the experiments, such as non-alkali isotope enrichment by magne-tic deflection of a polarized atomic beam, in which a high selectivity and a large transmittance solid angle of the state-selective system are required.
    本文结果，对磁偏转法浓缩非碱同位素等要求选态系统同时具备较高的选择性和较大的原子穿透立体角的实验有应用价值。
19. Revision of solid angle in radiation measurement
    辐射测量中的立体角修正
20. The performance of the chamber, experimental or expected, has been given: solid angle coverage, gain and efficiency, spatial resolution on the R-φ plane, axial spatial resolution, dE/ dx energy resolution and particle identification power, etc.
    给出主室各项指标的实验值或估算值：立体角覆盖、增益和效率、R-φ平面的空间分辨率、轴向空间分辨率dE/dx能量分辨率与粒子鉴别能力等。
21. The computational method of integration for solid angle on cross section of the elliptic waveguide
    椭圆形波导管中对空间立体角积分的计算方法
22. Detection efficiency of mica for fission fragments under the geometry with the solid angle less than
    在立体角小于2π条件下云母探测裂变碎片的效率
23. The precision of measurement of the quality of the sample depends on geometry of the small solid angle device mainly, and there are two methods to scale the geometry factor of the small solid angle device, namely radioactive laws and geometry method.
    样品质量的测量精度主要依赖于小立体角装置的几何，而刻度小立体角装置的几何因子有两个方法即放射性法和几何方法。
24. In this work, a single Fe atom and multi Fe atoms as model respectively, holograms recorded in a complete 4 π solid angle with different range and magnitude of incident energies are calculated.
    分别以单个和多个铁原子为模型，数值模拟了它们在4π立体角范围内、不同范围的入射能量的情况下记录的全息图。
25. The computational method of solid angle and surface integral in integral equation
    积分方程中对空间立体角及曲面积分的计算方法
26. It covers geometrically 86% of the 4 π solid angle and has very low detection thresholds.
    总立体角覆盖约86%的4π以及有一个很低的能量探测阈。
27. The scheme makes use of strict collimation of the beams, full solid angle detection of the reaction products with a x y position sensitive Δ E E counter telescope, mixing trigger and pileup rejection to carry out the measurement of angular distribution under low beam intensity.
    采取次级束的严格准直、反应产物的两维位置灵敏全立体角探测、抗脉冲堆积和混合触发电子学线路等一系列措施，成功地实现了低流强条件下反应角分布的测量。
28. When put forward the concept of critical angle for the large displacement cross-section design of wells to determine the key parameters of solid angle provides a theoretical basis and selection range.
    临界稳斜角概念的提出，为大位移井剖面设计时确定稳斜角这一关键参数提供了理论依据和选择区间。
29. From the perspective of environmental psychology, this thesis firstly simulated dynamic light environment in the laboratory and researched influences of combination and intersection of three factors ( namely background brightness, distance/ solid angle and stimulating speed) on visual perception.
    本文首次在实验室内，从环境心理学角度出发，模拟动态光环境下，背景亮度、距离/立体角和刺激速度三因素的组合和交叉变化对人的视觉感知的影响。
30. We consider various instrumental selection effects, including the flux threshold and the trigger probability of BAT, the probabilities of a GRB jet pointing to the instrument solid angle, and the probability of redshift measurement.
    我们考虑了各种选择效应，包括流量阂值、仪器触发效率、喷流张角刚好指向仪器视角的概率和红移的测量概率。

noun

1. an angle formed by three or more planes intersecting at a common point (the vertex)