平稳地

In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.

本文中将上述理论方法成功地应用到故障诊断中去，提出了几点创新性的诊断方法；提出了一种齿轮磨损故障诊断的新方法，该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断，并通过与传统的频域诊断方法的比较，揭示出齿轮振动中存在的明显的非线性与非平稳特征，说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果；提出了一种轴承故障诊断的新方法，该方法利用ATVFD分解与Hilbert变换进行包络解调，并对解调得到的包络信号进行时频域分析，可以实现更加准确轴承故障诊断，说明了故障对载波信号的调制往往也是非平稳与非线性的；提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法，柴油机汽缸压力的变化是柴油机故障诊断的重要参数，利用振动方法可大大简化汽缸压力的检测过程，该方法也是综合利用ATVFD分解与时频域分析方法实现的。

Famous marathon ice-skatings athlete Xiao Erde undertook on ice stadium a series of ice-skating first-rately to experiment and slip smoothly run.

闻名的马拉松溜冰运动员肖尔德在冰场上进行了一系列第一流的溜冰试验和平稳地滑跑。

And the friction coefficient of the rub has a good effect on the absorber effect of the system too. A large friction coefficient can make the system to work more steadily.

碰摩摩擦系数对系统的减振同样有很好的效果，较大的摩擦系数能够使系统更平稳地工作。

It points out the exterior impaction of export departments on non-export departments and the impactions of primary products export and industrial products export and reveals the essential characteristic of China's economic operation through the empirical results, thus analyzing the impact of export trade on China's economic growth objectively.

为了避免谬误回归的产生，本文从非平稳的实际变量来考察，将名义变量合理地转化为实际变量，然后利用ADF单位根检验各变量的平稳性，对于非平稳的实际变量，利用协整理论来分析变量之间的长期关系。

One of the most important political changes in China over the past 30 years has been a move away from the vicious factional strife of the Maoist era, a tendency that persisted well into the 1980s and fuelled the pro-democracy upheaval of 1989. In 2002, for the first time in China's communist history, power was smoothly transferred from one set of leaders to another without killings or purgings.

过去30年来中国最重要的政治变革之一便是抛弃毛泽东时代残酷的派系斗争，这一趋势一直持续到20世纪80年代，引发了1989年的民主运动。2002年，中共历史上首次实现了在没有杀戮或肃反的情况下将权力由一个领导班子平稳地移交给了另一个领导班子。

Don't jerk the box up, pull it up smoothly.

别猛地向上抬这个箱子，要平稳地往上拉。

It could also be used to make three- and two-cylinder engines that run efficiently and smoothly.

它同样可以应用到3缸和2缸的发动机上面，确保它们高效而平稳地运行。

After open the switch, the tower crane should get to the pulley part(be set on the track extreme position), with the role of inertia and promote the pulley continuous slide to the forward, when it got the terminals of the track, the tower crane will stopp smoothly.

开关动作后，塔机应接触到滑动撞块，并在惯性作用下，推动滑动撞块继续向前滑行，碰到轨道端部的终端撞块时，塔机应比较平稳地停下来。

However, I gave it to her anyway because I wanted her to survive her teenaged years.

不管怎样，我还是给出了我的意见，因为我希望她能平稳地度过那个阶段。

In the optimization iteration, the levelset function values of nodes are considered as design variables. To computedifferences normally, the Heaviside function is handled for smoothing, theregularized Heaviside function is selected to avoid the oscillation inhomogenizations method, and the results can converge smoothly.

在优化迭代过程中，节点上的Level Set函数值被看作是设计变量，并且为了便于微分计算能够正常进行，对Heaviside函数及其导函数做了光滑化处理，选取了一种正则化的Heaviside函数，避免了均匀化方法中出现的振荡现象，可以平稳地收敛到最终结果。

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。