扰动

For the tunnel built in soft soil, it would deform along with the reconsolidation of disturbed soil, and the structure of tunnel and the operation of metro would be endangered.

对于软土地区的地铁隧道来说，下卧扰动土体的再固结使隧道随之产生变形，从而危及隧道结构和地铁运营的安全。

Synthetically analyses the effect of operating conditions and modes on the refrigerating capacity and energy consumption of the system.

针对天车在具有高温集中热源的车间中运行环境的变化，搭建了天车驾驶室空调系统的实验装置，设置符合实际情况的小扰动运行工况进行了实验，综合分析了运行环境和运行方式的改变对天车驾驶室空调系统制冷量和能耗的影响。

The resuspension of contaminated bottom sediment on the disturbing of boat propeller jet flow was studied.

进行船舶螺旋桨射流扰动下污染底泥起悬的计算研究。

Finally, resuspension rate of contaminated bottom sediment on the action of propeller jet flow was calculated quantitively.

最后定量计算了螺旋桨作用下污染底泥扰动悬浮速率。

By simulating calculation with a new velocity distribution formula of free jet flow and a scour rate one, the resuspension of contaminated bottom sediment on the disturbing of boat propeller jet flow was studied.

河流、湖泊中船舶的航行对于水体底部的污染沉积物具有很强的扰动作用，特别是船舶尾部的螺旋桨射流。

At same time it collects the pr essure signal of Servo-cylinder, it finds that the overflow valve pr essure sets too high between the servo valve and Rodless cylinder servo cavity, Tanks should not stress-free cavity under unloading, According to the fuel tank pr essure signal.

摘 要：本文针对某热轧厂横切线上的主要设备矫直机在矫直高强度，厚规格产品时，当负载受到外扰动时，矫直机传动轴经常断，工作辊轴承经常损坏现象，于是对伺服缸压力信号进行采集，发现装在伺服阀出口和伺服缸无杆腔之间的溢流阀压力设置过高，油缸无杆腔压力不能卸荷。

The results in this dissertation explain some electromagnetic perturbations during seism and during rock failure.

这一研究结果能够较好地解释地震和岩石动力破裂过程中的电磁扰动现象。

The power of the Langobardi was broken, a race surpassing even the Germans in savagery; and finally — and this is something which had never before been entertained even as a hope, much less actually attempted — a Roman army with its standards was led four hundred miles beyond the Rhine as far as the river Elbe, which flows past the territories of the Semnones and the Hermunduri.

LacusCurtius 站长 Bill Thayer 注释：朗哥巴第人的凶蛮可能的确属实，但此族远远未被粉碎，他们也就是现在通常说的伦巴底人，在古典时代晚期又再次浮现，侵入意大利，使帝国扰动不安】最终，一支罗马大军高擎军旗在莱茵河外直驰400罗哩进抵流经塞姆诺内斯人及厄尔门杜累人地域的易北河畔，此事以前即使作为期望也未曾想过，更罔论付诸实际！

Results present that when the lateral-torsional coupling is considered, the responses in the lateral direction of the coupled system subjected to a initial disturbance and a harmonic excitation in the torsional direction, respectively, can be occurred in different forms, and show great effects. However the responses in torsional direction subjected to lateral disturbance and harmonic excitation are slightish.

对系统进行了非线性响应数值计算和相应的频谱分析，结果显示弯扭耦合后，在扭转方向的扰动和简谐干扰扭矩均会以不同的形式在弯曲方向表现出来，并对系统的弯曲振动产生较大的影响；而弯曲振动对扭转振动的影响则要小得多。

The thesis illustrates the principle of the and its application in the system, establishes the simulation model of the vector control system of PMSM based on the EKF and successfully realizes the application of the speedless sensor in motor control. Firstly, based on the mathematic model of permanent-magnet synchronous motor, the PMSM vector control system is built. Secondly, the Extended Kalman Filter is designed for the on-line estimation of the speed and rotor position by only using measurements of the motor voltages and currents.

首先，基于PMSM的数学模型，建立了电机的矢量控制仿真模型；其次，设计了扩展卡尔曼滤波器，通过检测电机端电压、相电流对电机转速和转子位置进行在线实时估计，实现了PMSM的无传感器矢量控制；最后，在Matlab7.0环境下进行的系统仿真试验表明，该方法具有优良的转角跟踪特性和较好的转速跟踪特性，同时系统具有较强的抗负载扰动性能和较佳的控制性能。

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。