扰动

The governor is designed with model structure. Closed-loop start-up strategy is applied during running and it realizes three adjust mode-frequency, wicket gate and power.

调速器采用模块结构进行设计，在调节过程中实现了闭环开机控制策略，并可在频率调节、开度调节、功率调节三种调节模式之间自动或手动无扰动切换。

Reaction wheel is one of the main disturbance sources that affect the precision of attitude control system of spacecraft.

反作用轮系统是影响航天器姿控系统精度的主要扰动源之一。

The theory of the reaction wheel is introduced at first,then the invariability theory of disturbing compensation and the math description of feed forward control.are recommenoled feed forward control and dead voltage compensation are added in the model of reaction wheel control.

中文摘要：对星载二维转台中反作用轮的控制技术进行了研究。介绍了反作用轮的作用原理，给出了扰动补偿的不变性原理和前馈控制的数学描述。

The existence and well-posed ness results for a class of perturbed optimization problemsin a Banach space are given, and the relationships between the strict Kolmogorov Criterionand the uniqueness elements of a sun in vector-valued function spaces are established.

本文研究Banach空间中的一类扰动优化问题的适定性和向量值函数空间中太阳集的唯一性元的严格Kolmogorov条件刻划。

The rate gyro feedback provides positive dynamic stability and well-damped transient response to commands or disturbances.

速度陀螺反馈提供正向动力学稳定性和对于指令式扰动的很好阻尼的瞬时响应。

The rate gyro feedback provides positive dynamic stability and well-damped transi t response to commands or disturbances.

速度 陀螺反馈提供正向动力学稳定性和对于指令式扰动的很好阻尼的瞬时响应。

Moreover, blobs may move too close to the boundary because of advection errors or other numerical errors. It may cause serious fluctuations in evaluating the strength of the vortex sheet. In order to reduce the fluctuations, these near-wall blobs are also manipulated in use of the concept of "residual vorticity". Finally, we apply the so-developed solver to a simulation of the flow past an impulsively started circular cylinder at different Reynolds numbers.

此外既有涡泡也可能因对流或其他数值误差造成过於靠近边界，因此我们也设计一专门处理过於靠近边界涡泡之方法，以其他计算元素取代这些涡泡，降低进入物体内部之环量，进而降低涡片强度计算上的扰动。

Streamwise vorticity, which forms in the braid zones where small three-dimensional perturbations grow strongly because of the extensional strain formed by vortex ring, collapses into counter-rotating round vortex tube.

辫子区内小扰动在涡环形成的拉伸应力的作用下快速增长，形成流向涡结构，并不断增强形成流向涡管。

To solve the velocity potential,we used an integro-differential equation.

采用关于扰动速度势的基本积分微分方程，并采用双曲面形状的面元以消除面元间的缝隙。

Using the two-stream fluid model, the linear dispersion relation is derived assuming a two-dimensional spatial geometry. Two cases are considered, one is that the 2D spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector , and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations .

对高能束流和电子回流构成的双流系统，建立冷等离子体流体模型，采用简正模分析方法，分别考虑扰动波矢在平行于电流传播方向的平面上和在垂直于电流传播方向的平面上这两种情况，推导了不稳定性的色散关系。

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。