vector line

Application of vector method to problems involving parallelism, perpendicularity and division of a line segment.

应用向量方法以解平行, 垂直及线段之分割等问题.

Based on a brief introduction to the basic theory of laser marking, the control software of laser on-line marking system is researched, and the realization method and process of vector marking mode is analyzed.

本论文在介绍激光打标基本原理的基础上，对激光在线打标控制软件进行了研究，分析了激光矢量打标方式的实现方法及过程。

Seismic precursor variation and residual vector in tidal observations of line strain, shear strain and plane strain

地表潮汐线应变、剪应变与面应变观测的残差矢量及其震兆变化

T 1: In the Main Display Area mainly display intelligence, vector map, scale line etc.

主显示区域主要显示情报 、 量地图 、 度线等.

Several Principles of Symmetry for the Line Integral of Vector Fields on the Plane

平面上第二类曲线积分的对称原理

The instantaneous corresponding relationship between the switching functions of MC and its equivalent AC DC AC topology with the limiting conditions is deduced, so that the PWM strategy of MC can be synthesized on the basis of space vector modulation of input phase currents and output line voltages.

在输入相电流空间矢量调制和输出线电压空间矢量调制的基础上，根据开关函数的瞬时对应关系及其限定条件，综合出MC的PWM控制策略。

Compared with existing control methods, this method generates higher voltage space vector magnitudes and reduces the influence of switch problems on motor operation in most fault modes, while maintaining a balanced line to line voltage, the reliability of the system is then enhanced.

与目前所采用的传统故障处理方法相比，在大多数故障形式下，该方法均能够提升输出合成电压的幅值，从而减少故障对系统的影响，提高级联H桥逆变器系统的可靠性。

ARPA radar vector line navigation

ARPA雷达矢量线航法

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。

Construction of eukaryotic expression vector containing thymidine kinase gene and its expression in esophageal cell line Eca-109

单纯疱疹病毒胸苷激酶基因真核表达载体的构建及其在食管癌细胞中的表达