不波动的

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。

"Hydraulic safety valve" is now widely used in hydraulic power systems and hydraulic equipment in the safety device could also serve as limited pressure device, is a special valve, unlike conventional valves, conventional valves with mechanical metal spring as a driving force, can only be limited to low pressure, the pressure encountered over more than 10Mpa limit pressure can do to increase the volume of the Safety Overflow Valve booster design, the traditional role of the high-pressure valves and high pressure hydraulic power systems and hydraulic equipment The limit pressure of necessity is bulky and complicated structure, difficult to manufacture large, high production costs; in the course of the fatigue of metal spring parameters change fluctuating pressure limiting Ambassador to regular revision to ensure the normal use.

&气动液压安全阀&是目前广泛应用于液压动力系统和液压设备中的安全装置，也可以作限压装置，是一种特殊的阀门，它不同于传统的阀门，传统阀门用机械金属弹簧为动力，只能限中低压力，遇到超过10Mpa以上的压力限压，只能做加大体积的增压设计，因此传统阀门作用于高压和超高压的液压动力系统和液压设备的限压时必然体积笨重，结构复杂，制造难度大，产品成本高；在使用过程中金属弹簧的疲劳变化大使限压参数波动大，要经常调整才能保证正常使用。

The following factors, among others, could cause actual results and future events to differ materially from those set forth or contemplated in the forward-looking statements: defaults on or non-renewal of leases by tenants or renewal at lower-than-expected rent or failure to lease at all or on favorable terms, decreases in real estate values and impairment losses, increased interest rates and operating costs or greater-than-expected capital expenditures, our failure to obtain, renew or extend necessary financing, re-financing risks, risks related to our obligations in the event of certain defaults under co-investment ventures and other debt, risks related to debt and equity security financings, difficulties in identifying properties to acquire and in effecting acquisitions, our failure to successfully integrate acquired properties and operations, our failure to divest properties we have contracted to sell or to timely reinvest proceeds from any divestitures, our failure to contribute properties to our co-investment ventures, risks and uncertainties affecting property development, value-added conversions, redevelopment and construction (including construction delays, cost overruns, our inability to obtain necessary permits and public opposition to these activities), our failure to qualify and maintain our status as a real estate investment trust, risks related to our tax structuring, failure to maintain our current credit agency ratings or to comply with our debt covenants, environmental uncertainties, risks related to natural disasters, financial market fluctuations, changes in general economic conditions, global trade or in the real estate sector, inflation risks, changes in real estate and zoning laws, a continued or prolonged downturn in the U.S., California or global economy, risks related to doing business internationally and global expansion, risks of opening offices globally, risks of changing personnel and roles, losses in excess of our insurance coverage, unknown liabilities acquired in connection with acquired properties or otherwise and increases in real property tax rates.

以下因素可能会导致实际结果和未来事件与前瞻性陈述产生重大出入：承租人拖欠租金或者不续租；利率以及经营成本的提高；我们未能获得必要的外部融资；再融资的风险；与合资项目和其它债务发生特定违约时我方承担的义务有关的风险；与债务和股权融资有关的风险；确定拟收购的物业以及完成收购过程中遇到的困难；我们未能成功整合收购的物业和业务；我们未能剥离已经签约出售的物业或未能及时将剥离带来的收益再投资；影响物业开发和建设的风险和不确定性（包括建设延期、费用超支、我们无法获得项目建设所需的必要批准以及公众对项目开发建设的反对等）；我们无法获得或者维持作为房地产投资信托公司的资质；与我们的税收策划有关的风险；无法保持我们目前的信用评级；环保方面的不确定性；与自然灾害有关的风险；金融市场的波动；整体经济状况或者房地产业的变化；房地产和城市规划法律的调整；美国、加利福尼亚州或者全球经济的衰退；与开展国际业务和全球扩张有关的风险；保险范围之外的损失；与被收购的物业有关的或者其它未知责任以及房地产税率的提高等。我们的成功还依赖于总体经济走向，包括利率、所得税法、政府监管、立法、人口总数变化以及我们在10-K表中作的截至2009年12月31日的季度报告中&风险因素&和其它标题项下阐述的其它问题。

They could suffer catastrophic losses if the treasuries are repriced. The 10-year treasury is yielding 4 per cent, against 4.1 per cent inflation in the US last year, and probably higher this year. The market still doesn't believe the current inflation rate will stick. When it wakes up to the inflation reality, the 10-year treasury may yield over 6 per cent and its nominal value could decline by 40 per cent.

一旦外汇资产价格波动，那将会给这三个国家带来不可估量的损失。10年之间，持有的外汇资产可能会带来4％的收益，但这相对于美国4.1%或者更高的通货膨胀率来说，实在是不太划算，并且从市场运行状况来看，通货膨胀继续恶化的趋势似乎没有听下来的迹象，当真正面对实际通货膨胀率时，10期间的外汇资产带来的收益也就是6％左右，但通货膨胀引发外汇资产的贬值额度却达40％之多。

They could suffer catastrophic losses if the treasuries are repriced. The 10-year treasury is yielding 4 per cent, against 4.1 per cent inflation in the US last year, and probably higher this year. The market still doesn't believe the current inflation rate will stick. When it wakes up to the inflation reality, the 10-year treasury may yield over 6 percent and its nominal value could decline by 40 per cent.

一旦外汇资产价格波动，那将会给这三个国家带来不可估量的损失。10年之间，持有的外汇资产可能会带来4％的收益，但这相对于美国4.1%或者更高的通货膨胀率来说，实在是不太划算，并且从市场运行状况来看，通货膨胀继续恶化的趋势似乎没有听下来的迹象，当真正面对实际通货膨胀率时，10期间的外汇资产带来的收益也就是6％左右，但通货膨胀引发外汇资产的贬值额度却达40％之多。

Based on basic theory of elastic wave propagation, wave equation forpropagation of elastic wave in 2 dimension vertical inhomogeneous mediumof similar concrete cutoff wall model is developed. 2 dimension elastic sheetof concrete cutoff wall is established to research law and energy distributionrelations between propagation, attenuation, reflection and transmission ofelastic wave in concrete cutoff wall; Based on the concept of resolution, thecontent of vertical reflection method used to inspect concrete cutoff wallresolution is raised and factors will have influences on resolution are analyzed,expression of defective layer composite reflection factor and detectabledefective layer maximum thickness are developed; Relations between allsteps of sampling system of vertical reflection are build, the influence ofcentrum characteristics and receiving sensor on testing results are analyzed,therefore parameter requirements for testing instrument and parameter selection principle of collected parameters are raised.

2从弹性波传播的基本理论研究出发，推导了弹性波在类似混凝土防渗墙模型的二维垂向不均匀介质中传播的波动方程式；建立了混凝土防渗墙二维弹性薄板模型，研究弹性波在混凝土防渗墙中的传播、衰减、反射、透射规律及能量分配关系；从分辨率的概念出发，提出了垂直反射法检测混凝土防渗墙分辨率的内涵，对影响分辨率的因素进行了分析，推导出了缺陷层复合反射系数、可检测缺陷层极限厚度的表达式；建立了垂直反射法采样系统各环节之间的关系，研究分析了震源特性、接收传感器对测试结果的影响，提出了对测试仪器参数的要求及采集参数的选择原则。

Based on the elastic theory of large deflection and by taking into account the variation of the axial force and its effects on bending deformation of the drillstring in vertical section ,the vibration of the drillstring induced by fluctuating weight on bit is described by a parametrically excited system.

基于弹性大变形理论，考虑到轴力沿钻柱轴线的变化及其对钻柱弯曲变形的影响等因素，将受自重作用的铅垂井段钻柱在波动钻压激励下的振动转化为一个参数激励系统，用 Galerkin方法首次得到了描述此系统的 Mathieu方程，并通过将方程的解展成富里叶级数的方法，得到了该振动系统的动力分岔值曲线及其所包围的动力不稳定区。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。