查询词典 lightlike vector

This example casts the pos vector to a column vector using the (float1x4) cast.

这个例子使用（ float1x4）强制转换把位置向量转换为列向量。

The influence vectors F〓(the column vector of reliability matrix) and the residual vector V are regarded as the analysis factors instead of γ〓 and ν〓, the correspondence coefficient of F〓 and V is as the parameter to snooping the outliers.

提出了观测量随机模型的误差分析方法和理论，研究了随机模型系统误差和粗差的消除方法，同时研究了高精度GPS平差处理中随机模型的建立方法。

Data are processed with the row vector or column vector respectively when needed.The whole simulation and modelling was completed with the software Cadence SPW.

系统模型的构建利用CADENCE SPW软件在HP工作站上完成，各分系统中子模块部分以SPW中的基础模块搭建而成，部分用C语言实现。

At polymorphic gene locus, the variance components of quantitative trait was described as follows:VA=2βp and VG=p′Xp-G2 in which p=column vector of polymorphic allele frequencies,β=row vector of2,X=［a2ij］i×i matrix,aij=genotype value,and G=population mean.

数量性状相对多态座位的加性方差和遗传方差分别为VA=2βp和VG=p′Xp-G2，其中p′和p分别表示多态等位基因频率的行向量和列向量，X表示以基因型值平方为元素的矩阵，β表示以基因均效平方为元素的行向量，G为群体均数。

In course of evaluation, index-vector and mission-vector are matched together, the performance of index can be analyzed, thus the weakness of the system can be found in time and its influence of the system can be confirmed, thus the effectiveness evaluation can be combined with index analysis.

在效能求取过程中对指标向量和使命向量进行了功效匹配，可实时对指标进行优劣分析，及时有效地发现系统的薄弱环节，并求取劣势指标对系统整体效能的影响程度，从而实现了效能评价与指标分析的有机结合。

In this design, the dimension M of the memory vector field may be not necessarily equal to the dimension N of the network vector field. This may be the usually case in applications. Designing a network with either static or oscillating behavior, after analysing the dynamical. behavior of its four-dimension subspace, we get 2-torus in the subspace. If we vary the ratio of the imagine parts of the complex conjugate eigenvalues, the periodic motion of all kinds of period ratio on 2-torus are obtained.

设计一个既具有静态平衡点又具有动态振荡的网络，其静态平衡点由多余维叉形分叉得到，动态振荡形式由多余维Hopf分叉得到，通过对其中一个具有振荡行为的四维子空间的进一步分析，可以得到网络在四维子空间中的二环面运动，适当调整约当形中共轭复特征根虚部的比值，可以得到各种周期比的二环面上的周期运动。

The complex vector model for permanent magnet synchronous motors is presented and the performance of the equivalent complex current controller is investigated using complex vector root locus and complex frequency response functions.

建立了永磁同步电机复矢量模型，应用复矢量根轨迹法和复矢量频域分析法对复平面等价形式的永磁同步电机电流调节器性能进行了研究。

MAIN OUTCOME MEASURES:Vector converting of CT image and vector image of three-dimensional reconstruction of femoral condyle.

主要观察指标：CT图像的矢量转换和股骨髁三维重建矢量图像。

To solve this problem, we consider that use of tissue-specific regulative elements in construction of plasmid vector for molecular conjugate vector may limit the expression of foreign gene to targeting cells further.

为解决这一问题，我们考虑在构建分子偶联载体中的重组质粒表达载体时，应用组织细胞特异性调控序列，以期在转录水平进一步限制外源基因的表达于靶细胞中，从而保证受体介导基因转移的靶向性，同时可望导致外源基因的高效表达。

Vector nature of angular momentum, precession, conservation of vector angular momentum (its transfer between parts of a system), nutation.

角动量的矢量特性，进动，角动量守恒(它在系统内部之间的转移)，章动。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。