It's the dot product between the normal vector of a plane and the vector along the line.
这是平面法向量，和沿直线向量的点积。
In this definition, argc is the number of arguments passed in (argument count) and argv is an array of strings representing options passed in from the command line (argument vector).
在这个定义中，argc是传递进来的参数的个数(参数数量)，而argv是一个字符串数组，代表从命令行传递进来的参数(参数向量)。
Well, at point P, the velocity vector QP is perpendicular to the line QP, 1 so the sine of that angle is one.
点P，速度向量,垂直于直线，所以该角的正弦值为。
So, one of them says the line integral for the work done by a vector field along a closed curve counterclockwise is equal to the double integral of a curl of a field over the enclosed region.
其中一种说明了，在向量场上，沿逆时针方向，向量做的功等于，平面区域上旋度F的二重积分。
It depends what the problem is asking the question is, is it enough to find the components of a vector or do we have to find the equation of a line?
这都是根据题目要求而定的，有一个问题是，找出向量的分量就足够了吗？，还是说我们需要解出一条直线的方程？
In this paper, the methods of drawing contour line from terrain map, the vector of contour line and generating elevation data from vector data are discussed.
论述了从地形图中提取等高线、对等高线矢量化以及通过矢量数据生成高程数据的实现方法。
The sampling density can be controlled according to the practical requirement during the course of contour line vector.
在等高线的矢量化过程中，可根据实际需要对采样密度进行控制。
When the hue difference increased, the magnitude of color shift in test target decreased, but the deflection Angle of color shift vector from constant hue line increased.
当诱导域与试验域之间的色调差增大时，试验目标色觉位移的幅值减小，而色觉位移矢量偏离恒定色调线的偏向角却增大。
Only if the component vectors are on a straight line will the length of the vector for the sum be equal to the sum of the lengths of these components or to their difference.
只有当几个分矢量在一直线上，那么表示其和的矢量长度才会等于这些分量的长度和或它们的差。
Numerical techniques related to the calculation of normal vector, tangential velocity, curvature and contact line are explained in detail.
文中介绍了有关泡面法向矢量、切向速度、曲率和接触线等的计算技术。
Call the automated line at Vector Control in Maricopa County, Arizona, and you'll get a couple of odd options.
当你给亚利桑那州马里·科帕县的病媒管制中心拨打电话，人工智能电话系统将给你列出几个奇怪的选择。
Select the wire side of the vector can also use the toolbar to draw points, drawing a line screen.
说明：对矢量图的电线面进行选择，还可以用工具条来画点，画线，画面。
For the case of planar interception, the so called relative heading error angle between the relative velocity vector and the LoS (Line of Sight) is chosen as the output to be controlled to zero.
针对平面拦截问题，选择导弹和目标之间的相对速度矢量与导弹-目标视线之间的夹角（称为相对航向误差角）作为将要被控制到零的输出。
Key points: application of the direction vector of a line and the normal vector of a plane.
重点：直线的方向向量与平面的法向量的应用。
A new multi-stage vector quantizer (MSVQ) of line spectral frequency parameters is designed.
设计了一种新的线谱频率参数多级矢量量化编码方案。
Objective: to construct eukaryotic expression vector of human death receptor (DR5) and transfect NS-1 cells to establish stable NS-1 cell line.
目的：构建人死亡受体5 (DR5)真核表达载体，转染NS - 1细胞，建立稳定转染的NS - 1细胞系。
With the tool of circle vector function, the involute helix profile with error is given, and with the media of engagement line, the error compensation mathematical model is established.
以圆矢量函数为工具，推出了误差条件下的渐开螺旋面方程，并以啮合线为媒介，建立了测量蜗杆误差补偿的数学模型。
The influence of each vector on the cell proliferation, clone-formation and alteration of cell cycle of bladder cancer cell line EJ were observed in vitro.
分别转染膀胱癌细胞株EJ ，观察不同载体对膀胱癌细胞体外增殖、克隆形成和细胞周期时相的影响。
Objective To construct eukaryotic expressing vector of human melanin-concentrating hormone receptor 1(MCHR1), then to transfect CHO cells with the vector for establishment of stable CHO cell line.
目的构建人黑色素浓集激素1型受体（MCHR1）真核表达载体，转染CHO细胞，建立稳定转染的CHO细胞系。
Only if the ponent vectors are on a straight line will the length of the vector for the sum be equal to the sum of the lengths of these ponents or to their difference.
只有当几个分矢量在一直线上，那么表示其和的矢量长度才会等于这些分量的长度和或它们的差。
Set up the circuit design criterion for the steady - stage deadbeat control to the line current of a three - phase high-power-factor rectifier based on voltage space-vector PWM.
建立了对基于电压空间矢量pwm的三相高功率因数整流器实现电流稳态无差拍控制的设计准则。
So a virtual line flux has been constructed to serve as the oriented vector instead of the line voltage vector to remove the AC voltage sensors and reduce the cost of PWM rectifiers.
采用类似于交流电机磁链观测的方法来构造一个虚拟电网磁链，可以代替电网电压作为PWM整流器矢量控制中的定向矢量，达到省去交流侧电网电压传感器，降低PWM整流器成本的目的。
The dissertation proposes a novel method for vector coding, i. e. Vector Projection method, which approximately represents a vector with the orthogonal projection of its endpoint onto a straight line.
提出一种矢量压缩编码新方法—矢量线上投影法，它将输入矢量用它在某条空间直线上的投影近似表示。
The paper introduces deburr algorithm before line trace in the course of vector quantization of binary map image, and it can receive better effect through applying for the algorithm.
介绍对二值地图图像矢量化过程中的线跟踪操作之前的去毛刺算法，应用此算法可以得到更好的线跟踪效果。
Because of this, this paper optimizes the solution further regarding matrix and vector quantity as tools, and it can produce the result through linear expression after elementary line change.
正基于此，本文进一步以矩阵和向量为工具对解法进行优化，使通过初等行变换后经线性表出就可以产生结果。
In this paper, the author gives the vector expression of the symmetric figure for a point, a straight line and a plane, and its application.
本文给出了点、直线、平面相互间对称图形的向量表达式及其应用。
An off-line parameter estimation technique to determine the parameters, which are necessary to implement the vector control of the induction machine, is presented in this paper.
详细介绍了感应电动机矢量控制系统电机参数的一种离线辨识技术。
The purely kinematical equation for the tangent vector of a line element is derived.
导出了线元切向量的变形方程以及拉伸轴在极射赤面投影图上位置变化计算公式。
To analyze the machined quality of cylindrical surface with line-contact rotating-milling, the kinematic model of tool-teeth is built based on vector theory.
为了分析线接触回转铣削外圆柱工件表面加工质量，运用矢量运算方法建立了线接触回转铣削外圆柱工件运动学模型。
Conclusion: Recombinant expression vector PGL3-DF3-DTA could produce specific lethal effect on human breast cancer cell line of DF3 positive.
结论：重组表达载体PGL3 - DF 3 - DTA能对DF 3阳性的乳腺癌细胞产生特异性杀伤作用。
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