反推力

When a rotating voltage vector is injected to the motor at standstill, there is a microinching when the voltage phase is line to the direct axis of the motor. Then the current will decrease due to the back electromotive force. The initial mover position is identified by this change.

电压相位和电机直轴重合时，产生的电磁推力超过负载阻力，电机有一微动，由于反电势的作用电流就会降低，通过检测电流矢量的变化来估计动子的初始位置。

When it comes to the rise of China, you have to be a realist that when push comes to shove, their push is bigger than our shove,' says Barnaby Joyce, a conservative leader in Australia's Senate.

澳大利亚参议院保守派领袖乔伊斯说，说到中国的崛起，你必须采取现实主义的态度，他们的推力比我们的反推力要大。

Generally,the best efficiency is obtained in second order vibration mode of the fishtail,and the reverse Karman Vortex Street wake is observed with corresponding frequency.

在一般情况下当外磁场以系统的二阶固有频率工作时其工作效率最佳。在此情况下鱼尾摆动产生了推力型反卡门涡街形态的尾迹涡流。

The good design of this device is very important to accomplish flow control and stability of the aircraft construct. The contour of scarfed reversal nozzle has many discontinuous points and a step at supersonic zone. So it can generate a series of expand waves and shock waves, and accomplished with flows separation and reattach.

斜切反喷管作为导弹常用的推力终止装置，能够可靠地完成发动机与有效载荷的分离，它的设计水平对提高导弹命中精度和武器装备的作战性能尤为重要；超声速开式空腔作为流动控制装置，具有减小阻力、增加燃烧混合、延缓边界层分离等作用，但同时也会带来严重的压力波动和噪声，其合理的设计对流动控制的实现以及飞行器结构的稳定性至关重要。

In this paper, the general motion equations of an unmanned air vehicle in consideration of the rocket thrust and the inverse torque of propeller jet are outlined and derived.

考虑火箭助推器的推力和螺旋桨发动机产生的反扭矩对起飞过程的影响，建立了无人机发射过程的非线性数学模型。

A prime example involves predicting the behavior of the efflux from engine thrust reversers.

一个主要例子包括预测的行为流出发动机反推力装置。

A typical commercial airplane deploys its thrust reversers briefly after touch down.

一个典型的商用飞机部署反推力装置短暂下跌后，触摸。

A bilateral permanent magnet brushless DC linear motor with short-pitch concentrated windings can be manufactured easily and with great thrust,but the back electromotive forceof its stator windings influences the thrust significantly and need careful analysis.

摘 要：短距集中绕组双边型永磁无刷直流直线电机制作简单、推力大。其定子绕组的反电势波形对推力影响较大，需要加以分析。

A bilateral permanent magnet brushless DC linear motor with short-pitch concentrated windings can be manufactured easily and with great thrust,but the back electromotive forceof its stator windings influences the thrust significantly and need careful analysis.

作者：赵宏涛，吴峻摘要：短距集中绕组双边型永磁无刷直流直线电机制作简单、推力大。其定子绕组的反电势波形对推力影响较大，需要加以分析。

This type of person could maximize the reflex action of the pole, and allow himself to be propelled as well by the pole's flexibility as by his own push from the pole.

31-34这种人能够使撑竿的反推作用达到最大，使自己即能很好地被撑竿的弹力所推动，也能很好地被自己来自撑竿的推力所推动。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。