Week 16 Energy of point charges system, energy of electric field in capacitor , energy and its density of electric field.
第16周点电荷系的能量；带电电容器储存的能量；电场的能量和能量密度；应用举例。
The potential profile on the diametral line on uniformly charged petal-like plane is deduced by means of potential formula of point charges.
从点电荷的电势计算公式出发推导出了瓣形均匀带电面在其直径处的电势分布。
The electrostatic interactions may be described by simple point charges or by more elaborate descriptions involving distributed multipoles up to rank 5 if required.
静电相互作用可利用简单点电荷或更精细的包含分布式多极矩(可达到5级)来进行描述。
We suggest a novel trap of trapping a neutral atom with static electric field of four point charges, and discuss the quantum effects of the cold neutral atom in the trap.
用四个点电荷构造一个简单、新颖的静电势阱，并基于含时薛定谔方程和有限差分时间域方法，研究冷原子在该势阱中的量子力学效应。
A simple type is that the forces on two dynamic point charges have the same direction, the scale of the forces are changeable with sine regularity and its' resultant force is stable and nonzero.
对动态电荷群的研究得知能够实现这种悬浮力。 较简单的情形是只要两个动态点电荷满足三个条件，它们各自受到的力就会指向同一方向，力的大小按正弦规律变化，合力不为零且稳定不变。
He is conducting a point-by-point rebuttal of charges from former colleagues.
他正在对前同事的指责逐条加以驳斥。
Gates and company were defiant, to the point of stonewalling regulators and refusing to take the charges seriously.
盖茨和公司目中无人，到了阻碍监管机构并且拒绝认真对待指控的地步。
The first step in that plan is to distance the singer from Neverland, which, as a focal point for the trial, is indelibly linked with those charges in the eyes of the public.
这个计划的第一步是，将这名歌星和梦幻岛庄园分割开来。 这个庄园作为当年审判的焦点，在公众的眼里，永远和那些可怕的指控有着联系。
And the best thing, from Mr McCain's point of view, is that he would not need to make any of these charges himself, because a legion of freelance Hillary-haters would do it for him.
而且，根据麦凯恩先生的观点，最好的事情是他不需要自己去提出任何一点控诉，因为有一大批痛恨希拉里的自由记者会为他做这些。
The ultimate point of smart grids, however, is to allow dynamic pricing, with electricity charges fluctuating in response to demand.
但智能电网的终极目标是希望电价能够按照需求响应而上下浮动，实现动态定价。
In a sign of how seriously the market views the civil charges, Goldman’s shares were down by more than 15% at one point on Friday.
作为这起民事诉讼对市场观点影响有多严重的信号，上周五，高盛股价在一日之内暴跌15%。
The Fed also made an emergency cut of one-quarter of a percentage point to its discount rate (which it charges commercial Banks), to 3.25%, and extended the rate to securities firms.
联储亦紧急下调再贴现利率0.25个百分点(由联储向商业银行收取)，调整后为3.25%，并将该利率的适用范围扩大到证券公司。
In the absence of new growth point, the bank charges revenue slowdown will be an inevitable trend.
在新的增长点的情况下，银行手续费收入增长放缓将是一个必然的趋势。
From an income point of view, the core of a country's income is levies and charges.
从收的方面，国家的收入主要来自哪些方面。一个核心问题是税收问题，还有一个收费问题。
The case was marked by legal irregularities, and at one point a Beijing court even withdrew all charges against him. But Mr.
该案明显不合法律，并在其中一个点，北京市海淀区法院，甚至撤回所有对他的指控。
Experimental results point out that the said copolymer electret film is a polar material, i. e. there exist both oriented dipoles and deposited space charges in the film after charging.
实验结果说明，拉伸前后的这类共聚物薄膜均是极性材料，即充电极化后的材料内部同时存在取向偶极子和俘获空间电荷。
Qualitatively, the equations mean this: Electric fields point out from positive charges and into negative charges, and magnetic fields curl around currents (moving charges).
定性地看，这个方程组意味着：电场是由正电荷指向负电荷，磁场围绕着电流即移动的电荷。
A course's "key selling point" will be "that it provides improved employability" and students will be asked to pay "higher charges" for a course only "if there is a proven path to higher earnings.
一门课程的“最大卖点”将是“它能提供更优越的就业前景”。只有这门课程“被证实是通往更高收入的成功之路”，才能够向学生索取“更高的学费”。（无意中想到另一个“更高”，报告从未提过——更高的学识。）
The recent a GREement clinched by the ECB to finalize the deadline for lowering the charges and commission rates for trans-border transactions and capital transfer can serve as a case in point.
一个现成的例子就是，在欧洲央行最近的一项协议中，跨国界交易和资本流动的成本和银行佣金率降低的最后期限被。
From the point of view of game theory, the protection of copyright in digital libraries and the charges by digital libraries to users are necessary and should be legalized. 4 figs. 6 refs.
从博弈理论角度看，数字图书馆的版权保护，以及数字图书馆向读者收费是必要的，应受到法律保护。图4。参考文献6。
From the point of view of game theory, the protection of copyright in digital libraries and the charges by digital libraries to users are necessary and should be legalized. 4 figs. 6 refs.
从博弈理论角度看，数字图书馆的版权保护，以及数字图书馆向读者收费是必要的，应受到法律保护。图4。参考文献6。
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