查询词典 approximate differentiability

Fuzzy systems or neural networks techniques are esPecially efficacious approaches for transacting uncertainty because it has been demonstrated that they can uniformly approximate an arbitrary continuous function to a given accuracy.

模糊系统或神经网络对于处理不确定性是特别有效的方法。

In this paper, two dimensional shallow flow—pollutants coupled model, which applies uninstructed grid finite volume method and Riemann approximate solver, is used to gain the trend of hydrodynamics and water quality change under the condition of driving force. Mechanism of nitrogen and phosphorous circle of WASP5 is considered in the water quality part of the model according to nutrition actuality of shallow lake in the cities.Xuanwu Lake is object of research in this paper.

本文针对城市浅水湖泊富营养化加剧现状，结合WASP5模型中有关氮和磷的循环机理，并将该机理写入已有的二维浅水流体水量模型中加以耦合，应用在无结构网格下的有限体积法与黎曼近似解求解的方法，求解湖泊在外驱动作用下的湖泊水动力和水质因子氮和磷的变化。

For eliminate redundant stress in spring unit brought by continuously variation of strain,in wind spring device,the adopt spiral output wheel with continuously variant radii was used and the variation of moment can be canceled out by variation of radii,the approximate constant output force can be obtained.

为消除弹簧装置中应力随应变不断变化而产生的多余应力，在卷簧结构中，采用螺旋变径输出轮，用半径的变化抵消力矩的变化，获得近似恒定的输出力。在精度要求不高的场合，采用此方式可形成简便可靠的近似恒力的弹簧装置

In the design, first, fuzzy logic systems were used to approximate the unknown functions, and the state observer was developed for estimating the unmeasured states.

设计中，首先用模糊逻辑系统逼近未知非线性函数，然后引入模糊自适应观测器估计系统的状态。

TEM field is slowly changing in middle to deep depth prospecting, which is characterized by unperceivable wave and dominant dissemination, thus it can be assumed to be quasi-static state approximate and the wave equation of electromagnetic wave radiation is retrogressive and replaced by diffusion equation.

在中、深层勘探情况下，TEM场是缓变的，其波动性已经很不明显，扩散特征起支配作用，波动方程退化成了扩散方程。

It is my belief that much unnecessary perplexity can be avoided if we limit ourselves strictly to the two units, money and labour, when we are dealing with the behaviour of the economic system as a whole; reserving the use of units of particular outputs and equipments to the occasions when we are analysing the output of individual firms or industries in isolation; and the use of vague concepts, such as the quantity of output as a whole, the quantity of capital equipment as a whole and the general level of prices, to the occasions when we are attempting some historical comparison which is within certain limits avowedly unprecise and approximate.

我相信，当我们论述整个经济体系的行为时，如果我们将自己的讨论严格限定于使用两种单位，即货币和劳动，那就可以避免很多不必要的困惑和混乱。当我们孤立地分析单个厂商或单个行业的产出时，可以在这种情形继续使用特定产出和设备的原用单位。当我们试图进行某种历史比较时，可以在这种情形使用诸如总产出数量，总资本设备量和一般价格水平之类含糊不清的概念，这是因为在一定限度内，历史的比较本来就是不精确的和粗略的。

In the balance area, an LQR controller is designed using a linear approximate model of the unstable equilibrium position to accomplish balance control.

在平衡区，采用在不稳定平衡点的线性近似模型来设计LQR控制器，实现Acrobot的平衡控制。

The B spline and the NURBS spline functions commonly used in the electromagnetic scattering field are approximate splines, but they have to solve the control points and the numerical solution is unstable sometimes.

目前电磁散射几何建模常用的B样条和NUBRS曲面都是逼近样条，存在需要反求控制顶点，数值解有时不稳定的缺点。

The organic matter and total N"s variation of the upper and below layer were identical whose range remained constant in each season; the soil NlV-N content in the upper layer was higher than hi the below in Spring and Autumn, but this change was complicated hi Summer and Winter owing to different forest measures; the peaks and valleys of NCV-N hi the upper and below soil layer appeared in the same tune, but the change showed no laws in different forest lands; the variation of the available N was approximate to NHU+-N; the range of each layer"s change of the hydrolysable N was identical that appearedparallel lines in figure.

土壤上下层有机质、全氮量的时间变化趋势相同，层间差异量基本维持在恒量水平；春、秋季铵态氮含量上层明显高于下层，夏、冬季随还林措施不同而表现复杂；上下层硝态氮波谷、波峰的出现时间大致相同，但不同还林地的变化规律较复杂；速效氮的变化趋势与铵态氮类似；土壤上下层水解氮的时间变化几乎同步，在图上表现为两条近似的平行线。

The estimation on the zone constraint violation was avoided; as a consequence the selection of the approximate setpoint when the control variable violates its zone constraint was skipped.

本文对具有区间预测的控制算法进行了研究，提出了一种新的"软约束"实现方法，不需要判断输出变量是否违反区间控制要求，避免了近似设定值的选取问题。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。