那我们怎么得到这单位矢量呢？
这就得到6个数字,和3个单位矢量。
还有一个有用的概念就是轨道的单位矢量。
Now, another useful notion is the unit vector to the trajectory.
这上面有一个帽子表示它是单位矢量，T表示它是切线。
It has a hat because it's a unit vector, and t because it's tangent.
本文对多端口反射计的任意相位单位矢量五点校准法作了改进。
An improved multi port reflectometer calibration method using five unit vectors with arbitrary phase is described.
单位矢量,始终指向,轴的正方向,轴方向的单位矢量，and，the，unit，vector,是这个。
Unit vectors are always pointing in the direction of the positive axis x in the x direction is this one.
针对直接矢量控制感应电机感应电机调速系统 ，设计和训练一个三层前馈神经网络以估计系统的实际转子磁链和单位矢量 ，并由此构成系统的闭环控制。
This paper designed and trained a three-layer fee dforward neural network to estimate the actual rotor flux and unit vector ford irect vector controlled induction motor speed drive.
采用D-H后置法建立了4R机器人运动方程，建立机器人执行机构在空间相对位置关系的数学模型，由此可解出手部位置和用单位矢量方向余弦表示的姿态。
A kinematics model by post D-H method for 4R-robot was offered in this paper, which derived the manipulator finger position and its attitude with unit vectors of direction cosine.
假设A是y方向上的,单位矢量,则是z方向上的单位矢量。，and，B，is，the，unit，vector，in，the，z，direction。,那A点B是多少呢？
Suppose A itself is the unit vector in the y direction B Then A dot B is what?
阐述了双馈发电机的矢量控制原理及其相应的最大功率点跟踪和发电机定子侧输出单位功率因数的控制策略。
The paper analyzes the vector control theory for doubly fed induction generator, Maximal Power Point Track (MPPT) and control strategy for the unity power factor of stator output.
以工程为单位，在统一空间基底的前提下，对矢量栅格基础空间数据进行一体化管理。
Taking engineering as unit, united spatial base being supplied, vector-grid basic spatial data was managed wholly.
方法的不同，主要在于单位相关矢量的求取方式的差异。
These methods then were unified in form with vector decomposition.
将每个像素的三个色彩通道看成是一个三维矢量，则矢量的单位方向向量和亮度分别表示像素的色彩和亮度。
The three color channels of each pixel were regard as 3-dimensional vector, and the unit directional vector and its magnitude represented the chromaticity and the pixel brightness separately.
将每个像素的三个色彩通道看成是一个三维矢量，则矢量的单位方向向量和亮度分别表示像素的色彩和亮度。
The three color channels of each pixel were regard as 3-dimensional vector, and the unit directional vector and its magnitude represented the chromaticity and the pixel brightness separately.
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