轴旋转

An ideal depolarizer can be combined with a λ/2 wave-plate and a λ/4 wave-plate rotating at different angular velocities with a certain ratio.

结果表明，让两波片以不同的角速度绕光线为轴旋转，当复合波片为一个λ/4波片和一个λ/2波片组合时，只要它们的角速度满足一定的比例时，可以组合成一个比较理想的退偏器；当复合波片为两个λ/4波片组合或为两个λ/2波片组合时，无论怎样旋转都不能组合成理想退偏器。

A set of curved lawn-mower blades that rotate around a bar parallel to the ground, cutting grass while moving against a stationary straight blade.

螺旋状刈草刀：弯曲的刈草机上沿与地面平行的轴旋转的刀，在切草的同时围绕一支静止的竖刀旋转 v.tr。

Using the basic dynamic equation of rotary non-inertial system, the basic law of object s movement in the reference system of rotating about fixed axis , and the conditions of momentum conservation and conservation of momentum moment of objects are educed.

利用旋转非惯性系中的基本动力学方程，导出在定轴旋转参照系中物体运动的基本规律，以及物体动量守恒和动量矩守恒的条件。

The moment of a force; the measure of a force's tendency to produce torsion and rotation about an axis, equal to the vector product of the radius vector from the axis of rotation to the point of application of the force.

转矩，力矩一种测量产生扭转和绕轴旋转趋势的力的单位，等于从旋转轴到力作用点的旋转矢量

The rats were randomly divided into four groups: normal contral group; double-axes rotation stimulation group; the bilateral labyrinthectomy group; group of two-axes rotation stimulation after the bilateral labyrinthectomy.

为了探讨旋转刺激与运动病发生的关系，本研究利用一种复杂的围绕两轴旋转的加速度刺激器刺激大鼠后，观察大鼠全脑内Fos蛋白的表达情况。

On the engineering application, the method of rotating stabilization is usually used to guarantee the directional stability in flight of rocket system because of its validity and simpleness.

旋转稳定方法由于其有效性和比较简单，在工程上，常常采用弹体绕自轴旋转的方法保证火箭系统飞行方向的稳定性。

To revolve(the telescope of a surveying transit) about its horizontal transverse axis in order to reverse its direction.

旋转使围绕其水平模轴旋转，并转向一个相反的方向

To revolve(the telescope of a surveying transit) about its horizontal ''.'transverse'.'' axis in order to reverse its ''.

旋转使围绕其水平模轴旋转，并转向一个相反的''。

It introduces mathematic demonstration about the reason of heterogenic image motion vector,analyzes the necessity of drift mechanism and puts forward a compensation method by using scan mirror,drift mechanism and exposure slit.

对产生异速像移实质给出了数学推导，对偏流机构存在的必要性进行了分析，提出了一种利用两轴旋转扫描镜，同时结合旋转偏流机构和曝光帘缝的像移补偿方案。

Firstly,by moving and circumrotating coordinate switching the complex model of tri－phase AC aosynchronism motor to Magnetization－Torque two axeses,The physical model of AC color Is transformed model of DC motor approximately,It is convenience to control the motor.

首先，经过坐标的平移和旋转变换，将原三相交流异步电机的复杂模型转换到M－T（Magnetization－Torque）两轴旋转坐标系上，将交流电机的物理型等效地变换成近似于直流电动机的模型，为控制带来方便。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。