角分布

The investigation results indicated that the relative tolerances of resultant vector angle is less than 10％ and that of thrust coefficient is less than 2％ while nozzle vectoring, and the infrared radiation distribution of computation is consistent with that of engine test roughly as well as to meet the demands of engineering design for AVEN basically.

结果表明，在矢量状态下，气动矢量角的相对误差不大于10％，推力系数的相对误差不大于2％；在非矢量状态下，红外辐射的计算值与发动机实测值相比，其空间分布基本一致，基本可以满足工程设计的要求。

Both small angle X-ray scattering and photon correlation spectroscopy were used to characterize the particle size distribution of nano-scale tungsten powders.

采用X射线小角散射法和光子相关谱法测试了纳米钨粉的粒度分布。

With the help of the model,the relationship between the target position deviation angle and the scattering intensity was obtained and the effect of scattered light on the signal was analyzed from the view of scattering.

基于Mie理论，考虑粒子尺度分布函数，得到了群体粒子散射模型，在该基础上，建立了目标方位偏差角与散射光强的关系式，从粒子散射的角度分析了粒子散射光强对回波信号的影响。

In small angle X ray scattering , the measurement for particle distribution was used the scattered intensity of the particle himself.

用小角散射测粒度分布，用的是各颗粒自身的散射强度，而实测的强度总包含有干涉部分，不易分开；考虑到在测非晶态的结构中，用的是各个原子散射光之间的干涉效应。

The algorithms estimate the DOA of the broadband distributed source fron the secondary diagonal elements of the covariance matrices generated from every frequency domain of the received broadband signal s, thus avoiding unwrapping of phases.

该类算法首先将阵列接收的宽带信号变换到频率域，然后对于每个频率形成阵列接收信号协方差阵，最后由该协方差阵的次对角线元素估计宽带分布源的到达角，其主要特点是避免了相位展开。

Based on the experiment, a finite element analysis model is established to predict the longitudinal shear modulus of X-cor sandwich structures.

在实验基础上，建立了X-cor夹层结构有限元分析模型，分析了Pin植入角、Pin直径以及Pin分布密度对X-cor夹层结构剪切模量的影响。

For the axicons with 20 mm radius, 10-2 cone angle, when using incident spherical wave whose radius of curvature varius from 1200 mm to 1400 mm, the focal length increases from 200 mm to 120 mm and the lateral intensity distribution increases only 15μm.

对于半径20 mm，锥角θ=1×10－2的圆锥透镜，采用曲率半径为1200~1400 mm的球面入射波，可扩展焦深200 mm到120 mm，光强的均匀性有明显改善，横向场能量分布形状改变量不超过15 μm，完全达到应用要求。

These quantities are used to characterize the spherical geometry of subpoints.

定义了用于刻画卫星星下点球面几何特征的两个指标：平均星间角距和星下点分布面积。

A spleenwort of eastern and southern United States.

分布于美国东部到南部的一种铁角蕨。

A spleenwort of eastern to southern United States.

分布于美国东部到南部的一种铁角蕨。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。