英语人>网络例句>for a change 相关的网络例句
for a change相关的网络例句

查询词典 for a change

与 for a change 相关的网络例句 [注:此内容来源于网络,仅供参考]

The some machine fixes the factory machine processes the cartful a low pressure goes together with to give or get an electric shock system and cars change to give or get an electric shock a design Chinese summary: This design is the design that some cartful to passes to the some machine processing plant a low pressure for changing giving or get an electric shock with first processing car go together with to give or get an electric shock the system, make stronger" factory power supply and protect after the electricity" and some related and curricular theories knowledge, study with control the basic method that factory( change to give or get an electric shock) electricity part design, foster independent analysis in ego with the basic technical ability that problem-solving work ability and actual engineering's design, from but proceed this time graduate designs, for our four hearses of the study draw a satisfactory period.

那位老大帮帮忙,专业翻译。有分。帮忙翻译以下内容:某机修厂机械加工一车间低压配电系统及车间变电所设计中文摘要:本设计是通过对某机械加工厂的某一车间变电所和一个加工车间的低压配电系统的设计,来巩固"工厂供电及继电保护"及一些相关课程的理论知识,学习和掌握工厂电气部分设计的基本方法,培养自我独立分析和解决问题的工作能力及实际工程设计的基本技能,从而进行了此次的毕业设计,为我们四年的学习画上一个圆满的句号。

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。

The 4th: Of exterior link guide, a lot of stationmaster can feel more to had been jumped over here, actually otherwise, but the catenary outside doing not have is no good for certain, at this o'clock I admit, so I had the site with the alternative forum in a few my friends that be close friends and Baidu tall weight to be added to this site guide link, the daily record is analysed before, the spider crawls rarely, the catenary outside the course is brought, the result has greatly change, basic be can crawl everyday, seize this opportunity, update the content that achieves a gender formerly for the website every day, actually to be being achieved formerly, a lot of people have different view, what the specification wants here is, I those articles also are not achieve completely formerly, also be everywhere estreat, throw into confusion ordinal, change caption stopped, because you want to know, search indexes propping up is a machine after all still is not a person.

第四:外部链接的导入,这里很多站长会觉得越多越好,其实不然,但是没有外链肯定是不行的,这点我承认,所以我对该站点有选择性的在我几个要好的朋友的论坛及百度权重高的站点加上了导入链接,之前分析日志,蜘蛛很少爬行,经过外链一引,结果大有改观,基本是天天都会来爬行,抓住这个机会,天天为网站更新原创性的内容,其实对于原创,很多人有不同的见解,我这里要说明的是,我那些文章也并非完全原创,也是到处摘抄,打乱顺序,改变标题罢了,因为你要知道,搜索引擎究竟是机器还不是人。

Based on the two proxies of climate change - tree-ring and stalagmite, combining them with the historical documents, the author discusses the history and effects of climate change about 200 years in Kunming, In this dissertation, the author infers the possibility of climate change for the next five years, ten years, and fifty years; Then get a Synthetic result of historical climate change.

在对树轮和石笋这两类气候变化自然代用资料研究的基础上,结合历史文献资料,分析了近200年昆明地区气候变化的历史和影响,并对昆明地区未来5年、10年和50年气候变化的可能性进行推测,形成了这三类资料支持之下,对历史气候的集成研究成果。

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析,将双相受热面统一划分为热水段、蒸发段和微过热段三段,所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换,而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题,统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算,而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准,解决了超临界压力下水与蒸汽的相变点问题。

Onetechnique, surprise: Single when and if other people, have a fixed-step (O-step word, S word step backward in a straightline, etc.) should be close to the enemy in time for change, change for about 1 second left, To do all of a sudden, the mainpurpose is to allow the enemy lost the ability to reflect, too late to dodge, and then re-knife to cut them to death, whichis the most successful results, if the two sides into a short-range combat knife, then use the knife should be light.

技巧一,出其不意:在单刀时如果与别人对上,自己有一个固定的步法(O字步,S字步,直线后退等)则要在敌人接近时进行改变,改变时间约1秒左右,要做到突然,主要目的是让敌人失去反映能力,来不及闪躲,然后以重刀一刀毙之,这是最成功的效果,若双方陷入短距离刀战,则使用轻刀应对。

But on account of excessive cut since 1949, forest resources cutdown sharply, bring a series of problem, for instance, forest productivity decrease, forest habitat fragmentation, agrestic species become extinct at a high speed, environmental quality decline, this paper discussed forest resources change in Heilongjing Province from statistical change feature of forest resources and forest landscape pattern change, using model of GM(1,1) to predict the development trend of forest resources here.

但由于半个多世纪的过量采伐,致使森林资源锐减,带来了森林生产力下降、森林生境破碎化、乡土物种加速灭绝和环境质量下降等一系列问题。本文从森林资源统计变化特征、森林景观格局变化两个方面对黑龙江省森林资源的变化进行了研究,并用灰色理论的GM(1,1)模型对该省森林资源未来的发展进行了预测。

Object: The project is on the basis of chronic alcoholic myopathy model of rat, to dynamically observe the change of NF-κB and MMP-2, MMP-9 in muscle cell, observe the function in the mechanism of alcohol myopathy, move forward a single step to explain the pathogenesy of this disease from gene and protein leve. We also provide a helpful platform for other metabolic myopathy. Methods:(1) 80 health, male, Sprague-Dawley rats(weight 180~200g), were chosen to sep up the CAM rat myopathy model ,to observe the rat bodyweight, the change of praxiology and the patho-change of muscle tissue.

目的:本实验旨在建立大鼠慢性酒精中毒性肌病模型的基础上,动态观察NF-κB及MMP-2、MMP-9在酒精中毒性肌病发展中的表达、变化情况,探讨其在慢性酒精中毒性肌病发病过程中的作用,从基因和蛋白水平进一步阐述该病发病机制,为慢性酒精中毒性肌病的临床防治提供理论依据,同时对于其他代谢性肌病的研究也提供一个平台。

As a side note, i recently took a drive to a nearby city, about 500 km away and 4800ft of change in elevation...on the way "up" theres a sudden change in elevation for about 100 km but maybe 3000ft elev....i was in a hurry and i was at full throttle almost for the entire trip, and when i reached that steep incline, the rogue slowed down from 150kmph to 120 kmph, even if i had the pedal to the floor, it wont go faster...only after a 45 minutes period of 120kmph it started gaining speed again but didnt reach the 170kmph as i have seen before...when driving back there was no problem at all, even when i was again at full throttle most of the time...both times i was the only occupant of the vehicle on daytime driving and straightways about 50 km long...

附带注记一下。最近我开车到附近的一个城市,路上大约 500 公里远,在约 100 公里内的爬升 4800ft海拔的突升变化,但也许 3000ft 海拔。。。。我是匆忙以及我是在几乎为在整个的旅途的完整节流,我到达该陡峭的斜坡,rogue 速度开始下降,从 150 kmph 到 120 kmph,即使我将油门脚踏它到底,它并没走得更快。。。持续45 分钟内只保持在 120 kmph 然后它开始再次获得速度,但没有达到 170 的 kmph,正如我之前所曾见。。。驾驶回程时始终没有问题,甚至当我再次在完整的节流大部分时间。。。来回程我是该车辆的唯一乘员,白天驾驶及直线路约 50 公里长。。。

Response time is defined as the same point in the panel above to change from black and white plus the time required for change from white to black response time LCD there is a matter of time because the LCD is based on the rotation angle of liquid crystal molecules to control the light light and dark gray rotation of liquid crystal molecules will take time. the general aim is to monitor the use of word processing and web browser is under normal circumstances will continue to monitor display screen with a long period of time, then switch to a different picture of such a In fact, the use of fast response time more than slow the user is not affected but if you want to use animation or video monitor view will continue to change because the screen did not stop this time the response time will affect the picture quality.

坏点所谓坏点,是指液晶显示器上无法控制的恒亮或恒暗的点,坏点的造成是液晶面板生产时因各种因素造成的瑕疵,可能是particle落在面板里面,可能是静电伤害破坏面板,可能是制程控制不良等等等,坏点分为两种:亮点与暗点,亮点就是在任何画面下恒亮的点,切换到黑色画面就可以发现,暗点就是在任何画面下恒暗的点,切换到白色画面就可以发现,一般来说,亮点会比暗点更令人无法接受,所以很多monitor厂商会保证无亮点,但好像比较少保证无暗点的,有些面板厂商会在出货前把亮点修成暗点。

第70/100页 首页 < ... 66 67 68 69 70 71 72 73 74 ... > 尾页
相关中文对照歌词
Time For A Change
Everybody's Waiting For A Change
For A Change
推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力