次流压比的增加将导致激波向扩张段上游移动,且喷管矢量角不断增加;
Along with the increase of the secondary flow pressure ratio, the shock move toward upstream divergent section and the thrust vector angle gradually increases;
运用麦克斯韦方程组的矢量角谱表述,将平面衍射波分解为TE项和TM项。
Based on the vector angular spectrum representation of Maxwell's equations, the diffracted plane wave is decomposed into the te and TM terms.
研究表明,分离流动对矢量喷管的性能参数尤其是有效矢量角具有较大影响。
The results show that flow separation has much effect on the performance parameters, especially the efficient deficient angle of the nozzle.
在图像的边缘空间,提取图像边缘点的颜色矢量角直方图,以此来描述图像的内容。
The color vector Angle histogram is constructed in the image edge and used to describe the image.
并通过不同模型对应同一点的位移矢量角对层状反倾岩质边坡的反倾条件进行了界定分析。
Using the grey theory, this paper makes a treatment of the monitoring data of landslide displacement) and finds out the grey displacement vector angle.
对摆喷管推力矢量方式,获得了推力、侧向力、推力矢量角随发动机喷管偏角以及水深的变化规律。
For the movable TVC, the thrust and lateral forces with respect to nozzle deflection angles and the depth of water were obtained.
针对堆积层滑坡变形破坏特点,运用灰色理论,对滑坡位移观测资料进行了处理,求出了灰色位移矢量角。
To counter the motion deformation characteristicscs of accumulation landslide. the monitored data of landslide displacement with grey theory and acqifcs displacement vector angle were dis-cussed.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量,使其矢量角均匀变化,减小电压波形中的高次谐波分量。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量,使其矢量角均匀变化,减小电压波形中的高次谐波分量。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
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