查询词典 balance of power

From energy balance equation, using micro-piece analytical method, heat balance equation for high power fast axial flow CO〓 laser tube is established with the boundary conditions of actual fast axial CO〓 laser, the analyzed solution of the temperature distribution in the laser tube is obtained.

并应用热传导的物理边界条件，求出了热能平衡方程的解析解，得到了实际器件放电管横截面内的气体温度分布公式及温度分布曲线，并求得了激光功率变化对热致负透镜焦距的影响关系式。

In this paper, we focused on the Thermal Power Generator unit commitment optimization. A mathematical model is presented and consuming minimization of generator is chosen for its objective function, with the power balance, generation capacity limits, maximum allowable start and stop times limits and time limits taken into consideration. The unit commitment optimization is constrained minimization problem.

本文主要对火电机组优化组合问题进行了研究，提出了机组优化组合的数学模型，该模型以发电总成本最小为目标函数，同时考虑了功率平衡约束、机组输出功率上、下限约束，机组最大允许启停次数和时间约束等约束条件。

In this article, with pointing out that the result of the current calculation model is deficient in the similarity, it has deduced the numerical regulation of the variation of the elements including q ,γ andτ in the steam-water distribution matrix equation when the terminal temperature difference exits in the heater via the power balance equation, and combining with the power equation and boiler absorbed heat equation, the precise calculation model for the impact of heater terminal temperature difference on heat economy of unit is then derived.

指出现有计算模型结果具有近似性的不足，本文通过加热器能量平衡方程推导出加热器有端差时汽水分布方程中q 、γ和τ元素数值的变化规律，然后结合功率方程和吸热量方程得到加热器端差对机组热经济性影响的精确计算模型。

The present work solves the ELD problem with Lineflow constraints through effective appli- cation of GA, considering the system transmission losses, power balance equation as the equality constraint, limits on the active power generations of the units and limits on currents in different lines as the inequality constraints. Two test systems, i.e.

目前的工作，解决了在ELD 问题lineflow的限制，通过有效的应用-阳离子遗传算法，考虑到该系统的传输损耗，权力的平衡方程作为等式约束，限制，有源电力几代人的单位和限制电流在不同的线路（ lineflow限制）作为不等式约束。

Finish the formation technologies of the balance computation, analysis ways and balance power structure of hydromechanics

完成了水力学中力平衡计算、分析方法及平衡力机构的成型技术及工艺

Law is superior to administrative power, the constitution has the highest authority, and person or group should not outmatch the law; democratic legislation requires that the legislative body should be born of universal and periodic elections and its main tasks include setting up laws and supervising the administration; judicial branch is independent and has high position and authority, also practises judicial review to prevent arbitrary violation of the constitution; check and balance institutions among different branches of the government to prevent that a single branch has too much or monopolistic power.

现代法治虽无划一的模式，各国历史条件和文化传统也存在诸多差别，但所采取的基本原则和制度大体一致，主要是法律大于行政权力，宪法具有至高无上的权威，任何人和团体不得凌驾于法律之上；立法民主，由拥有广泛代表性和定期选举阐述的立法机构制定法律、监督行政；司法独立、拥有崇高地位和权威，并且实行防止随意违宪的司法审查制度；政府各权力机构间实行牵制与平衡，以防止单个机构权力过大。

In general,(1) price fixing and rationing regulations were ended too soon, before the output of peacetime goods had risen to a level high enough to absorb the accumulated purchasing power in the hands of consumers from their efforts in war production; thus, the slowness of reconversion from war production to peace production caused a short supply at a time of high demand;(2) the Allied exchanges, which had been controlled during the war, were unpegged in March 1919 and at once fell to levels revealing the great price disequilibrium between countries;(3) purchasing power held back during the war suddenly came into the market;(4) there was an expansion of bank credit because of postwar optimism;(5) budgets remained out of balance because of reconstruction requirements, reparations, demobilization expenses (as in the United States, Italy, and so on); and (6) production of peacetime goods was disrupted by revolutions (as in Hungary, Russia, and so on) or strikes (as in the United States, Italy, France, and so on).

一般而言（1）固定价格和配给的管理机制结束太早，和平时期商品的产量尚未上升到足以吸纳消费者们在军工生产中聚积在手中的购买力，这样，战时生产转换到和平时期生产的缓慢过程中，在一段时间内，产生了供给不足而需求旺盛。（2）战争期间，盟国的外汇兑换曾被人为控制，1919年3月，管制解除，一时之间，国家之间价格的失衡就显现出来。（3）战争期间被抑制的购买力突然涌入市场。（4）战后，乐观主义抬头，银行信贷扩张。（5）因为重建家园的需求、战争赔款、裁军花费，预算始终不能平衡。（6）和平时期商品的生产不断被革命或罢工（如美国、意大利、法国等等）所扰乱。

Chapter 2 is devoted to study of exact solutions of the nonlinear evolution equations. Using solutions of a Bernoulli equation instead of tanh in tanh-function method we find some more general solutions of the KdV-Burgers-Kuramoto equation , and by using the nonlinear telegraph equation we show that there are many different choices on its balancing number m and the power n of the nonlinear term in Bernoulli equation by which we can recover the previously known solutions and also can derive new square root type solitary wave solutions. Exact solitary wave solutions for a surface wave equation are obtained by means of the homogeneous balance method. We also present an approach for constructing the solitary wave solutions and non-solitary wave solutions of the nonlinear evolution equations by using the homogeneous balance method directly, which is also used to find the steady state solutions, solitary wave solutions and the non-solitary wave solutions of the 2+1 dimensional dispersive long wave equations. The soliton-like solutions of the BLMP equation and the 2+1 dimensional breaking soliton equation are found by use of the symbolic-computation-based Method.

第二章中研究了非线性发展方程的精确解：用双曲正切函数法中的双曲正切函数换为Bernoulli方程的解的方法而给出KdV-Burgers-Kuramoto方程的精确解并用非线性电波方程为例说明了平衡数m和Bernoulli方程中非线性项的次数n有着多种选择的可能，它不但使我们能找到已知解而且也能找出新的根式孤立波解；用齐次平衡法给出一个曲面波方程的精确孤立波解，并提出直接用齐次平衡法寻找非线性发展方程的孤立波解、非孤立波解的方法，作为应用给出2+1维色散长波方程组等的定态解、孤立波解、非孤立波解等；用Symbolic-computation-basedMethod获得BLMP方程和2+1维破裂孤子方程的类孤子解；提出sine-Gordon型方程的直接求解方法，并获得sine-Gordon方程、双sine-Gordon方程、sinh-Gordon方程、MKdV-sine-Gordon方程和Born-Infeld方程等的精确孤立波解。

Aiming to characteristic of 3-phase to 2-phase power supply based on balance transformer , a new current balance compensation method utilizing inverter is proposed, which is mainly used to compensate negative sequence current.

针对平衡变压器平衡供电的特点，提出了一种利用逆变器对三相变两相供电方式下的电流负序分量进行综合平衡补偿的新方法。

Aiming to characteristic of 3-phase to 2-phase power supply based on balance transformer, a new current balance compensation method utilizing inverter is proposed, which is mainly used to compensate negative sequence current .

从而使平衡变压器两相侧的输出电流对称，消除平衡变压器三相侧产生负序电流的条件，达到三相电流对称的目的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失