管不到的

But ECT technology has the following characteristics: 1 the measured capacitance and its change induced by the measured material concentration variation are very small, but the stray capacitances of co-axial screening cable and CMOS switches are relative very large, so the capacitance detecting is easily affected by the stray capacitances, 2 the electric fields in the sensors detecting region is affected by the permittivity distribution, non-uniformity of the space responsive sensitivity is very high, and the image reconstruction is undetermined.

但由于ECT技术中，首先所检测的微电容量及其因物流相含率的变化所引起的变化量很小，而由相关的连接同轴屏蔽电缆与切换CMOS开关所引入的杂散电容远远大于测量电容，微电容的测量容易受杂散电容等的影响；其次，多电极电容传感器测量区内的电场受介质分布的影响，且测量区内的空间响应灵敏度极不均衡，其影响图像重建的不确定性；其三，ECT中的图像重建，由于其是一个欠定问题的求解，在迭代求解方法中，迭代的初值影响迭代过程收敛到近似解的速度；其四，对于气/固两相流应用而言，由于ECT系统在线标定的难以实现，管壁磨损等因素的影响制约该技术应用于生产工艺中气/固两相流的长期连续检测。

It's always been the fate of the proletariat to overthrow the capital and property holders. While revolution might create turbulence in society, it is only through revolution that resources will be redistributed, that the old system of society will be struck down, that further development can be obtained. Armed revolutions of the past have always taken place because society had no democratic system, as well as the corresponding imbalance in distribution of society's resources. Despite the government's current effort to develop democracy, one can still see the results have not been great. From government officials down to flat-headed common folk, everyone's working hard to get a piece of the pie. Who cares about democracy?

从来都是无产者革资产者的命，革命本身会造成社会的动荡，但唯有彻底的革命资源才能重新分配，才能打破旧的制度社会才能得到进一步发展，历来的武装革命都是因为社会没有民主制度以及相应的社会资源分配不均衡所导致的唯一的也是必然的选择，然而如今虽然政府也在大力发展民主政治，但可以看到收效不大，从政府官员到平头百姓都在为眼前利益奔忙，谁管什么民主，民主离我们太远了！

That is to say, during the starting process of induction motor, hold-off angle of current has gradually decreased from initial value to zero. The method can always make the displacement angle less than thyristor's firing angle. So the voltage of the induction motor won't oscillate. Therefore, the oscillation of current, electromagnetic and speed can be eliminated during the soft-starting process of induction motor. This paper verifies the correctness of the method by simulation at first.

根据上述原因，本文提出了采用关断角控制的新型控制策略，这种控制策略是使电动机在起动过程中的电流关断角由某一初始值逐渐减小到零，利用该方法可以使感应电动机起动过程中的续流角始终小于晶闸管的触发角，这样续流角的变化就不会引起电动机端电压的振荡，因而就从根本上消除了感应电动机软起动过程中的振荡现象。

That influential artists 2, age is still hours 3, Please give my greetings to your parents 1, his parents made him very happy things 2, a lot of houses have been built to meet the needs of the people 3, Lincoln is considered one of America's greatest president 4, in the prompt at any time, he has published two novels of the 5, to his 18-year-old, I believe that he was the university examinations into the 6, and sometimes it is hard to refuse the invitation of a friend 7, can turn the radio tube smaller 8, many students shut themselves up in a room to learn 9, most of them have experienced the Second World War 10, many people patronize the Carnival 11, the number of students in this school the school in excess 12, I can not help but laugh with them 13, to hear the exciting news, I could not help but jumped up happy 14, who, as a wise leader will be remembered 15, this book belongs to you do 16, master a foreign language is very difficult to 17, I lived in a remote house, but it does not feel lonely 18, can you imagine JOHN do like fishing in the river 19, he was very hard to learn.

问题补充：后面的 1、他父母对他所作的事情很满意 2、已经建造了好多房子来满足人民的需要 3、林肯被认为是美国最伟大的总统之一 4、在提示随时，他已经出版了两本小说了 5、到他十八岁时，我相信他会考进那所大学 6、有时拒绝朋友的邀请真的很难 7、能不能把收音机管小一点 8、许多学生把自己关在房间里学习 9、他们中的大多数人经历过第二次世界大战 10、许多人光顾了嘉年华 11、这所学校的学生数多余那所学校 12、我忍不住和他们一起笑了 13、听到这令人兴奋的消息，我忍不住开心的跳了起来 14、他作为一位睿智的领导人将被永远铭记 15、这本书属于你吗 16、掌握一门外语是很难的 17、我一人住在偏僻的房子里，但并不感到孤单 18、你能想像JOHN在河边钓鱼的样子吗 19、他很努力学习。

It is available to carry out numerical simulation and fluid dynamic analysis further. Based on Frozen-Rotor Approach and Rotor-Stator Approach, the numerical simulation was carried out in the centrifugal pump and the numerical results showed that the flow in the impeller and volute of centrifugal pump is periodically unsteady. Due to the interaction between impeller and volute the flow is characterized by pressure fluctuations and it is the strongest at impeller outlet and at the vicinity of the tongue. The unsteady pressure fluctuations are also one of the most important reasons to induce vibration and noise. Secondly, the flow field of the volute is characteristic of the vortex flow, and the vortex flow presents very complicated developing process which is creating, increasing and dissipating every now and then. All these lead to very large flow loss in the volute.

采用Frozen-Rotor冻结转子模式和Rotor-Stator滑移界面模式系统开展了不同工况下离心泵内叶轮与蜗壳耦合的定常和非定常流动研究，结果表明由于叶轮与蜗壳的干扰蜗壳进口周向流动的不均匀性是非常强烈的，特别是叶轮与蜗舌间的相互干扰最为强烈，一直影响到叶轮进口和蜗壳扩散管出口的流场；在蜗壳内整个流动是以旋涡形式向出口推进的，并随着包角的变化旋涡表现出十分复杂的产生、发展和耗散的演化过程，导致蜗壳内较大的流动损失。

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。