curl of vector

Deducing error equation that used vector rotating and transfer of axes theory,Measuring out measurement parameter error on different orthogonality by testing optical-electrical device.

提出误差推导的一种新方法,利用向量旋转及坐标系变换理论推导出误差公式。

In the paper,the rotation vector of a spin vector is introduced,and the rotation vectors of spin vectors of T,N and B are characterized.

引入了自旋向量的旋转向量,给出了曲线的单位切向量T、主法向量N和副法向量B的自旋向量的旋转向量的刻划。

By virtue of some known results of the existence on at most one or two limit cycles of the Lienard systems,using the theory of rotated vector field,we study the number and relative positions of the limit cycles of the n-demensional differential system =y,=-(hxn-1+δ)y-(xn-x)(h>0),where n is a positive integer greater than 1.

利用已有的关于Lienard系统极限环存在性和唯一、唯二性的诸多结论,结合旋转向量场理论,研究了n次微分系统x。

Moreover, the generalized rotated vector field, constructed in the present paper, is used for obtaining the existence condition of period solutions for another system.

然后,利用构造的一个广义旋转向量场得到另一系统的周期解的存在条件。

In this paper by means of three types of exampls,we investigate the distinction problem of what types of bounded separatrix cycles the limit cycle of quadratic system will become,when it is extending in rotated vector field as the parameter varies monotonically in a suitable direction.

本文通过三种类型的例子研究了在旋转向量场中二次系统的极限环随参数按适当方向单调变化而扩大时,将变成何种类型的有界分界线环的判别问题,而且得出二次系统极限环存在的精确参数区间的三个推论。

By application of the theory of rotating vector field ,this paper obtains the sufficient conditions for limit circle of the second system of Ⅲ a=0 x=-y+x+lx 2+mxy+ny 2(n=-1,0<l<1) y=x(1+y), that exists in origin periphery.

利用旋转向量场理论得到Ⅲa=0 类二次系统 x =-y+δx+lx2 +mxy +ny2 y =x(1 +y) (n =- 1 ,0

Application of the Principal Component Method for Rock Bit Selection Based on Vector Rotation

基于向量旋转的主成分法在钻头选型中的应用

Rotating Machinery Failure Diagnosis Based on Support Vector Machine;

基于支持向量机的旋转机械故障诊断

Study on Trajectory Measurement Technology of the Point-the-Bit Rotary Steerable Drilling System

指向式旋转导向钻具钻孔轨迹测量研究

Research on Bending Rotation Test of Rotation Shaft in Point the Bit Rotary Steerable System

指向式旋转导向系统旋转轴弯曲旋转试验研究

rotarydisplacement meter

“旋转”排量式仪表

The rotational inertias of uniform rotational rigid surfaces about the around axis

均质旋转面绕旋转轴转动的转动惯量

A turning to the right.Used especially of the plane of polarization of light.

向右旋转向右旋转，尤指光的偏振面

By turning this knob to the right you can amplify the sound from this radio.

把这个旋扭向右转你就可以增大收音机的音量。

The Stability of Limit-cycles in a Spinning Vector Field;

一旋转向量场中极限环的稳定性及变化规律

Gyroscope-Free Inertial Measurement and Lateral Thrust Control System Design for a Rolling Missile

旋转导弹的无陀螺测量方法及直接侧向力控制

Particle image velocimetry(PIV) measurements of the flow in a rotating cavity with a radial inflow

用PIV技术测量径向进气旋转盘腔内的流动

Fault Diagnosis of Rotating Machinery Based on an Improved Support Vector Machines Model

改进支持向量机模型的旋转机械故障诊断方法

Support Vector Machine Model for Landing Process of Helicopter with Rotator Self-rotating

直升机旋翼自转着陆过程的支持向量机模型

Study on the storage function of the measurement while drilling (MWD) system in rotary steerable drilling tool

旋转导向钻井工具随钻测量系统存储功能研究

And the problem is, the more you go through the revolving door of infatuation, the less powerful it is.

问题在于，当你在旋转门中被转得晕头转向，它的力量也越来越小。

If the wheel is rotating counterclockwise, its angular-momentum vector is directed eastward.

如果轮子是逆时针方向旋转，其角动量矢量的方向朝东。

inboard turning

内向旋转(从尾向首看

rotary displacement pump

回转泵，旋转排量泵