查询词典 asymptotic curve

Can be seen, no overload is the essence of the centrifugal pump, pump shaft power curve peak, or shaft power with the increase of flow rate changes are small, relatively flat power curve that axis, so that the pump shaft power in the dead lift off to zero head (that is, from zero flow to maximum flow rate) are less than equal to the original context of the supporting motive power.

可见，无过载离心泵的实质是指，泵的轴功率曲线有峰值或轴功率随流量的增加而有较小的变化，即轴功率曲线比较平坦，使泵的轴功率在关死扬程到零扬程范围内都小于等于原动机的配套功率。

A new method to measure fluorescence lifetime, which compose Lssajous figure to a straight line with fluorescence decay curve and RC curve line is described in this paper.

本文介绍了一种测量荧光寿命的新方法：利用荧光衰减曲线和RC电路衰减曲线合成李萨如图形来测量固体荧光材料的荧光寿命。

Because there is a declension when we count the burning rate of propellant with geometry comburent law, so the notion of relative pressure impulse is introduced which correspondent statistical average thickness in the law of gasses generation, ultimately acquire theΨ-Z curve by p-t curve which is measured by closed bomb.

几何燃烧规律在计算发射药的燃速时存在偏差，因此引入与统计平均厚度概念相对应的相对压力冲量来代替相对厚度，根据密闭爆发器实测的p-t曲线直接计算得到Ψ-Z曲线，建立了发射药实际燃烧速率模型，并编程进行了模拟计算。

Chapter six presents such new concepts as margin utility contribution force, profit-risk exchange rate, state-expectation-variance utility function, long-term expectation-variance utility curve and optimal portfolio expansion curve. The state-expectation-variance analytical method is developed from the expectation-variance analytical method. The changing rate of profit-risk exchange rate to state variable is used to define and distinguish the decreasing, constant and increasing relative risk aversion. A decomposition formula about the margin contribution force of holding wealth to state-expectation-variance utility function is displayed. The decomposition formula demonstrates that the contribution force of investors' holding wealth to their utility is composed of the pure contribution force of holding wealth and the investment contribution force bronght about through investment portfolio.

第六章提出了边际效用贡献力、收益—风险替换率、状态—期望—方差效用函数、长期期望—方差效用曲线、最优证券组合扩展线等新概念；把期望—方差分析方法发展成状态—期望—方差分析方法；用收益—风险替换率对状态变量ω的变化率来定义和区分递减、定常、递增相对风险厌恶；获得了持有财富对状态—期望—方差效用函数的边际贡献力的分解式，该分解公式表明投资者的持有财富对他的效用的贡献力由持有财富本身的纯贡献力和持有财富通过投资证券组合所产生的投资贡献力所组成。

This paper presents the method of curve deform which is based on the concept of the energy of deform curve.

本文提出了基于变形曲线能量的概念，进行曲线相似变形的方法。

In wire-cutting manufacturing of the top and bottom different curve,accomplishing cutting way of ellipse bias changing curved surface which between two plane curve into developable surface in order to calculate NC program of four axis ganging.

在上下异型工件的线切割加工中，宜采用椭圆偏置切割法，即将上、下两平面曲线间的曲面变成可展直纹面，进而计算四轴联动的数控程序，可保障加工的效率与效益。

The involute tooth curve and transition curve mathematical model of gear drive with few teeth number difference is set up.

计算机可视化动态模拟是近几年发展起来的一门新型学科。

In the flashover zone, an unstable point can be obtained from the characteristic curve and differential coefficient curve of the potential function.

在轰然区，可利用势函数的特性曲线和微商图得出火灾的不稳定点，再由不稳定点取值计算轰燃发生时热烟气层的温度。

If the measurement data are demarcated, the acceleration curve can also be calculated by solving the second order differential coefficient of measurement curve.

如果对测量值进行标定，还可以通过对测量值曲线求二次导数得到振源的加速度曲线。

It is found that there exists an obvious prepeak in the low-Q domain (Q=15.7 nm^-^1) of the structure factor. In the X-diffraction pattern, the liquid diffraction curve is corresponding with the solid diffraction curve. There exist the prepeaks for them in the low-Q domain, which shows that there is the comparability in the microstructure between them.

采用紧束缚原子间作用势，利用分子动力学模拟的方法研究了Al5Fe2合金熔体的微观结构，发现在结构因子的小角部分(Q=15.7nm^-^1)出现了一个明显的预峰，并得到X射线衍射实验的进一步印证，在实验测得的合金衍射图样中，液态衍射曲线与固态衍射曲线间存在着很好的对应关系，它们在小角部分都存在峰位，这表明Al5Fe2合金熔体与其固态在结构上存在着很大的相似性。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48