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The mathematical model of spatial trajectory of torpedo tracking and perpendicular target hit is derived, and the guidance rules combining variation of advance angle and bearing proportion are presented for the first time.

基于面向对象技术，对鱼雷跟踪和垂直命中目标空间弹道进行了仿真和分析。

The X-ray imaging observation and the localized velocity structure favor such a bound-incoming model that these two clusters, with a true spatial separation of about 6.4Mpc/h, are moving together with a relative velocity of 664 km/s along the direction with a projection angle of 71.5 du.

近来的X-ray成像观测以及局域速度结构支持这样一种束缚塌缩模型：两星系团的真实空间距离约为6.4Mpc/h，其投影角为71.5度，并正以大约664千米每秒的相对速度靠近。

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

The RSSR mechanism with a twist angle of 90°is one of the Spatial four-bar linkages Which finds wide application in practical production.

叉角为90°的RSSR机构是生产中广泛使用的一种空间四杆机构。

The parameters of trap detectors including: spatial uniformity, polarization dependence, angular variation, temperature coefficient, have effect on quantity transfer process, so these effect are quantificationally discussed on the basis of ...

实验表明陷阱探测器的一些特性对量值传递过程产生着不可忽视的影响，比如：响应均匀性、偏振特性、角度特性、温度系数。

Through simulating the speckle intensity distribution in the far field of a random rough surface,we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average,and determinate the surface roughn.

通过模拟计算随机粗糙表面的远场散斑场，以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数，并应用集平均的数学模型反演粗糙度参量。

Through simulating the speckle intensity distribution in the far field of a random rough surface, we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average, and determinate the surface roughness by the mathematic model of ensemble average.

通过模拟计算随机粗糙表面的远场散斑场，以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数，并应用集平均的数学模型反演粗糙度参量。

Information about spatial variation of lower degree components of the geomagnetic field is contained in angular dispersion of VGP.

虚磁极的角散布携带着地磁场低阶非轴向偶极子分量空间变化的信息。

Because of wide spectrum bandwidth of the mode-locked laser, When the AOD works, the light spot of the 1 st diffraction order will be distorted by significant angular dispersion, thus reduces the spatial resolution of the image.

研究表明：由于飞秒激光在锁模情况下具有较宽的光谱带宽，经过AOD后的一级衍射光斑带有严重的角色散，导致光斑形状发生畸变，影响成像的空间分辨率。

Creative research has been carried in the technologies of temporal pulse shaping, spatial intensity shaping, angular spectrum dispersion, and wave front control, which cover four parameters of time, amplitude, spectrum and phase that describe the characteristics of a laser beam.

以表征激光束特性的时间、振幅、光谱、位相等四个信息参量为对象，创新性地研究了脉沖时域整形技术、光强空间整形技术、光谱角色散技术和波前控制技术。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。