同样地

Ground (70 feet high at 14 MHz, with a wire length of70 feet) and both patterns are for an elevation angle of 10°,20 meters. The long-wire in Fig 2A is oriented in the 270° to

天线安装在同样高度的1 λ波长的平坦的地面上（14MHz是是70英尺高，长线的长度为70英尺长）同样有个 10°的仰角，这是一个在20m时做远距离通联的不错的角度。

Incorrectly low external cartridges will speed up the formation of a bubble ink chamber, even using the original cartridge of EPSON CISS, the same will happen over failure.

错误地将外置墨盒放低同样会加速墨腔泡沫的形成，即使使用了 EPSON 原装墨盒的连续供墨系统，同样会发生以上故障。

When we give up all claim to a knowledge of the final end, we shall clearly perceive that just as we cannot invent any flower or seed more truly appropriate to a plant than those it produces, so we cannot imagine any two persons, with all their past in such complete congruity down to the smallest details, with the part they were destined to play.

放弃对最终目的的探求，我们便会清楚地看到，一种植物有一种植物的花朵和种子，我们无法去空想更适合于这种植物的其他花朵和种子。同样，我们也无法想象其他两个有各自经历的人能比拿破仑和亚历山大更合适地、更细致地和更彻底地完成他们天赋的使命。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

Loop, a quasigroup with an identity elementLoop, an edge that begins and ends on the same vertexLoop, a path that starts and ends at the same pointProgram loop, a sequence of commands that is executed repeatedlyAn infinite loop is a sequence of instructions in a computer program which loops endlessly.

使成环， quasigroup 与身分元素圈，边缘，道路起动和结束在开始和结束在同样端点圈的同样点节目圈，命令序列一再被执行一个死循环是说明顺序在计算机程序不尽地使成环。

It was surprising to find that if Ⅱ was mildly oxidized in the same manner with iodine in potassium iodide the ethyl group was lost and the same product was formed.

让人惊奇的是如果II用同样的方式温和地用碘/碘化钾氧化乙基也失去并得到同样的产物。

In his Gorgeous Light, the artist straightly presents the vanity nature of capitalism: for the superman - a world hero made by the United States – its "famous" cloak solitarily circles over the city and casts a blocky shade of the U.S. national flag, and on the ground, there are also some distorted, collapsed and toppling skyscrapers desperately and restlessly leaning upon each other.

在《灿烂的光》中，艺术家同样一针见血的表现出了资本主义的虚无本质：超人——这个美国制造的世界英雄——那件"著名"的披风在城市上空孤独的盘旋，投下斑驳的美国国旗的阴影，地面上几个同样扭曲倒塌，摇摇欲坠的摩天大楼绝望不安的彼此依靠。

Here are the moments I feel that if I join in the fight, I'd only be possessed by spitefulness and bitterness, that I'd only become one of them. Yet I don't know how to stay untouched.

有时候这种分离不一定是徘徊在死与生的界限上的，但同样的是离别，同样的痛彻地不可避免和无法挽回。

The amount of Ca8-P in soil with CRMP treatments was lower than that of CMP treatments. The changes of the amount of Al-P, O-P, Fe-P and Ca10-P in soil were neglectable during the course of experiment.3. The shoot and root weight of sorghum increased through application of phosphorus, in addition, The increase of sorghum shoot and root weight was greater than that of common monoammonium phosphate due to the slow release of nutrients from CRMP. The accumulative uptake of phosphorus in shoot and root with CRMP treatment was greater than that with CMP treatment in low (75 mg P2O5/kg soil ) and high（150mg P2O5/kg soil）rates, especially on middle stage, and in high phosphorus rate, this advantage was more obvious than that in low phosphorus rate.

磷肥的施入，促进了高粱地上部和根部的生长，而控释肥由于缓慢释放养分，与作物吸收相一致，更能促进高粱的地上部和根部干物质积累；对于高粱地上部及根部的磷素累积，在两种施磷水平下控释处理地上部及根部磷素累积量均大于非控释处理，尤其是在中期，而且高磷水平下优势更加明显，低磷控释处理的磷素累积量能达到高磷非控释的累积量，即减少一半的用量即能达到同样的效果；在氮、钾、钙、镁相同的水平下，控释处理比非控释处理更能促进地上部及根部氮、钾、钙、镁累积量，这种优势在中期表现最明显。4。

High-quality construction features on the PA28 Mixer include the same individual vertical circuit boards, nutted pots, and solid copper bus connections as the acclaimed ML series consoles.

如果您再仔细地检查一下它们的质量，您就更会欣赏它们标准化的结构：与我们的顶级产品 ML 系列调音台同样单独的垂直型电路板、同样的电位器帽、同样的铜质内部耦合界面。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷