查询词典 position vector

Additionally,the method to determine position coordinate and trajectory vector of the shooting point with detection array is also studied in this paper.

另外还研究了利用正四面体探测基阵确定射击点空间位置坐标和弹道矢量的计算方法。

A novel approach to position sensorless vector control system of permanent magnet synchronous motor based on active disturbance rejection controller is presented in this paper.

利用自抗扰控制器理论，提出一种新颖的永磁同步电动机无位置传感器矢量控制系统。

Therefore this thesis put forwards a vector position selecting-best updating PSO algorithm.

为此本文提出一种粒子位置择优更新的粒子群算法。

The project makes use of improved sector position selector and applys voltage vector selector,advancing the system's reliability and resistivity.

该设计采用改进的扇区位置判断和应用电压矢量选取表的方法，提高了系统的可靠性和稳定性。

We can select the proper voltage vector by the position and magnitude of stator flux as well as the magnitude of torque to keep the system under control even at the range of all speed.

目前的直接转矩控制系统绝大多数采用二极管整流的交-直-交结构，可是这种结构给电力系统造成了严重的谐波"污染"。

In chapter 4, some vector mathematical definitions are first given to position tolerance zones; second, the principle of variation geometry is introduced, and the mathematical foundation of automatic generation of a approximate linear equation of tolerance design function by variation geometry is first proven; tangent method and two-point slope method based variation geometry are main studied.

第四章首先对一些位置公差带给出了矢量化的数学定义；然后介绍了变动几何的原理，首次论证了变动几何能产生近似线性公差设计函数的数学依据，并着重研究了基于变动几何的切线法和二点斜率法。

The methods using rotating vector,carrier frequency excitation and heterodyning,tracking observers for rotor position estimation are discussed.

在传统的运动控制系统中，通常采用旋转变压器或光电编码器来检测转子的位置和速度。

Since the first discovery of pulsar in 1967, static dipole field has been used for a long time to represent pulsar magnetic field in the study of rotating vector model, which is used to interpret the variation of linear polarization position angle with pulse phase.

1967年发现第一颗脉冲星以来，在用于解释线偏振位置角随脉冲相位变化曲线的旋转矢量模型中，脉冲星磁场通常被近似为静态磁偶极场。

This is the vector that points from the camera position to the point being shaded.

这是从摄像机的位置到被着色点得到的向量。

Also the cases for modifying geometric features such as position, tangency or normal vector of one selected point and a series of selected points are discussed respectively.

根据给定的几何约束，首先在各参数点处分别构造出一系列满足该点处几何约束的局部曲面，并由此构造总曲面。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷