失稳

Simulation and test prove that this method can improve nutation stability caused by gyroscopic effects effectively.

仿真和实验结果表明，采用这种基于转速的增益预调交叉反馈的控制算法，能够有效地抑制磁悬浮飞轮转子陀螺效应所导致的章动失稳，所设计的磁悬浮飞轮原理样机能够稳定运行在其额定转速30000r／min。

The paper's aim.By designing the 32bit application program that runs on the 32bit operating system of Window 98/2000/XP with Visual C++ language the paper makes the computing of the time sequence of those displacements and prediction on Bai-yun-e-bo east mine roboticized, to input the coordinate data, choice the parameterchoice menus and click the button need be done by those extended technology personnel, then forecasting the slope's Stability will be accomplished, it make those extended technology personnel free from calculating onerously , then them will devote their mind to study the theoretics.

本论文通过用美国微软公司著名的应用程序开发工具—Visual C++ 6.0编制了运行在Windows 98/2000/XP等操作系统下具有微软Internet Explorer 6.0 风格的32位应用程序，使对白云鄂博铁矿东矿边坡位移值的时间序列的计算和预测全部由计算机自动完成，一般技术人员所要做的仅仅是输入测点的空间坐标数据和预测所需要的一些参数，通过选择菜单选项和单击按钮，就能实现对白云鄂博铁矿东矿边坡失稳的预测，从而使广大技术人员从繁重的计算中解放出来，把精力放在具体的理论研究中。

The orthogonal expansion of the solution of the rotating disk motion equation is analyzed, and the stability of the system that includes the controller and the dynamics of sensor and actuator are analyzed.

本文通过对旋转圆盘运动方程解的正交级数展开的分析，由此在考虑控制器、作动器和传感器的动态特性情况下，分析了旋转圆盘振动主动控制系统的稳定性，指出了系统失稳的条件。

The computer simulations show the validity of the new method. The orthogonal expansion of the solution of the rotating disk motion equation is analyzed, and the stability of the system that includes the controller and the dynamics of sensor and actuator are analyzed.

本文通过对旋转圆盘运动方程解的正交级数展开的分析，由此在考虑控制器﹑作动器和传感器的动态特性情况下，分析了旋转圆盘振动主动控制系统的稳定性，指出了系统失稳的条件。

The research in this paper is also a beneficial attempt to find some measures to prevent the oscillatory instability and chaos in power systems.

文中的研究也是作为找到有效抑制电力系统振荡失稳和混沌现象措施的一种有益尝试。

Proposed the gas well drilling rock debris pellet collision causes the overcut, thus causes the well deviation viewpoint; And has analyzed the rock partical collision to the well circumferential stress influence, whether to determine the gas drilling jitter overcut to provide the computation basis.

提出了气体钻井岩屑颗粒碰撞导致井径扩大，从而引起井斜的观点；并分析了岩石颗粒碰撞对井周应力的影响，为判定气体钻井是否失稳和井径扩大从而引起井斜提供计算依据。

Programs are worked out and used for calculating overtopping and instability fuzzy risk of the Cheng Bi He Reservoir.

编制了电算程序，具体对澄碧河水库进行漫坝模糊风险和坝体失稳模糊风险计算。

In the induction caving roof, the quantitative inspection have been done by the digital digital panoramic borehole camera system. The quantum study are applied to inspecte the crack occurrence and width from the corresponding relation between 3-D image and its spatial coordinates. And the system provide the method to calculate, account and analysis of the crack parameter.

采用数字式全景钻孔摄像系统宏观探测顶板围岩在耦合诱导致裂失稳崩落的裂隙形态，从裂隙的三维图像与空间坐标关系，对裂隙的产状、隙宽和迹长等参数进行了定量的数字化探测、处理与还原。

The reseach results provide that, to the sysytem of digital panoramic borehole camera, it is a effective method to detect the crack occurrence, width and length from the visible and quantitative. It is advantage to handle emptied areas throught induce fracturing caving in the roof, it is saied the induce couple technology of mining and blasting.

分析结果表明，数字式全景钻孔摄像系统可以直观可视和定量精细描述裂隙的形态，回采扰动和强制爆破诱导耦合技术，从裂隙发育、扩展以及裂隙的演化，有利于顶板围岩致裂失稳崩落，从而形成诱导崩落顶板处理空区的目的。

The spinodal surface instability induced by the van der Waals force in a soft elastic thin film perfectly bonded to a rigid substrate is investigated theoretically using the bifurcation theory of elastic structures.

本文采用弹性体分叉理论，分析了完好粘结在刚性基底上的软弹性薄膜由范德华力引起的表面自发性失稳问题。

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。