振

Symptoms of cerebellar abiotrophy include ataxia or lack of balance, an awkward wide-legged stance, a head tremor (in dogs, body tremors also occur), hyperreactivity, lack of menace reflex, stiff or high-stepping gait, coarse or jerky head bob when in motion (or in very young animals, when attempting to nurse), apparent lack of awareness of where the feet are (sometimes standing or trying to walk with a foot knuckled over), poor depth perception, and a general inability to determine space and distance.

该疾病的症状包括共济失调、平衡能力丧失、笨拙的腿间距变宽的站姿、头部振颤、身体振颤、高反应性、威胁反射消失、僵硬或高步进步态、运动时抽搐性的头部摆动、明显的空间感和距离感消失。

The numerical results show that lossy dielectric-load can heighten the start oscillation current of absolute instability, and increase depends on the magnetic field strength and the perpendicular-to-parallel velocity ratio of the electrons; The thickness of the lossy waveguide increases the start oscillation length of backward wave oscillation.

结果表明：损耗介质的加载，可以提高绝对不稳定性起振电流，提高的幅度依赖于工作磁场偏离饱和磁场的程度、电子束横纵速度比等；增加波导损耗介质加载的厚度，可以提高竞争模式的回旋返波起振长度。

This design improve the performance of shock absorber and extend the service life of the absorber.

提高了减振器的性能，延长了减振器的使用寿命。

A semiconductor optical amplifier model is employed in which the self birefringence of SOA due to stress is taken into account. The integral action of the birefringence of the fiber and the PC is represented with a Jones matrix of linear retarder.

半导体光放大器采用由张应变引起的自身双折射理论模型，光纤的双折射效应和偏振控制器对光的偏振调节作用综合用一个线性双折射琼斯矩阵表示。

A novel sliding-mode control is designed with a load thrust observer for the Linear Permanent Magnetism Synchronous Motors,in order to compensate the disturbance and effectively minimize the system chattering;introducing an integral action in the sliding mode to eliminate the system error and chattering.

针对永磁同步直线电机提出了一种基于负载推力观测器的新型滑模变结构控制，从而实现对推力扰动的补偿，且大大削弱了推力纹波及系统的抖振；在滑动模态中引入积分环节来进一步消除系统的稳态误差和系统抖振。

A polarizing plate is provided and includes a polarizing film and two transparent protective film, at least one of the two transparent protective films being an optical compensation sheet, the optical compensation sheet being a cellulose acylate film having a thickness of from 40 m to 180 m.

本发明提供了一种偏振片，其包括偏振薄膜和两个透明保护薄膜，该两个透明保护薄膜中的至少一个是光学补偿片，该光学补偿片是厚度为40～180μm的纤维素酰化物薄膜。

In the first part,we use adjoint operator method and matrixrepresentation method to compute normal forms of higher order for nonlinear dynamicalsystems with Z2—symmetry and Z2—asymmetry.

在第二部分里，利用多尺度法、规范形理论、普适开折理论、Melnikov方法和Petrov方法分别研究了参数激励作用下非线性振子、参数激励与强迫激励联合作用下非线性振子的局部分岔、余维2退化分岔、余维3退化分岔和全局分岔。

Chapter one analyses the physical process of aeolian vibration of transmission lin...

第一章分析了导线微风振动的物理过程及防振的基本思想，第二章介绍了国内外在防振锤设计、应用等方面的研究工作及进展情况。

This medium is now also being used in switchable dampers. The new technology is the Continental Air Damping System.

该媒介也被使用在可切换式减振器上，这项新技术就是大陆空气减振系统。

An introduction is made of air springs Model S-200-2 with dual barrels developed by Nanchang University,and of structure and calculation of vibration i solation system for 75kg air hammer with a inertial block support by the springs .

本文介绍了南昌大学所开发的S 2 0 0 2型双曲囊式空气弹簧，以及以该空气弹簧为隔振元件的 75kg 空气锤惯性快式隔振系统的结构特点和设计计算。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。