查询词典 geodesic parameter

Calculating results show that variation of the propellant inlet pressure makes little impact on engine performance parameters, and the engine will transit to a new stable state. The parameter transition curves are smooth. When the engine thrust is adjusted in a small range within a short period, the parameter transition curves are also reposeful. But when the adjusting range becomes large, the parameter transition curves will fluctuate acutely. Thus, when large range adjusting is required, the time of adjusting should be lengthened or the adjusting should be divided into adequate steps.

计算结果表明，当发动机在某一个稳定工况工作时，发动机入口推进剂压强的变化对发动机性能参数的影响不大，发动机的参数都能比较平稳的过渡到一个新的稳定工况；当发动机在短时间内进行小范围的推力调节时，发动机参数的过渡过程的曲线也比较平稳，但是当在短时间内进行大范围推力调节时，参数的过渡过程的曲线振动比较剧烈，因此应当在进行大范围推力调节时，应当对调节时间进行适当延长，或者分级进行推力调节。

The invention can realize the row operation on each entry of address book, adapt the entry property and parameter of entry according to the actual condition of mobile terminal, and project each entry according to the meaning of property and parameter, to effectively avoid the information loss caused by the inconsistent property and parameter.

本发明实现了针对通信录中的各个条目进行操作，并能够根据移动终端的具体情况对通信录条目属性及参数进行适配，根据属性及参数的含义对各条目进行映射，从而能够有效防止由于属性及参数不一致以及针对记录操作而导致的信息丢失。

Chapter 1 discusses multiple parameters simultaneous estimation of a two-dimensional distributed parameter system; First, the distributed parameter system is transformed by applying a Laplace transform; Then by defining the objective function combined with the principle of optimal control, the problem of parameter estimate is converted into the problem of optimal control.

第一章讨论了一类二维分布参数系统的多参数同步辨识问题。首先利用Laplace变换对原系统方程进行了转换；然后结合最优控制原理定义目标泛函，将参数辨识问题转化为最优控制问题。

A first index identifying a first speech parameter template (614) corresponding to a first speech spectral parameter vector (604) of the sequence of speech spectral parameter vectors is transmitted.

发送一个第一索引，该索引标识一个对应于话音频谱参数向量序列中的一个第一话音频谱参数向量（604）的第一话音参数模板（614）。

The PID parameter tuning of non-linear control system is set as the engineering background. The aim is the optimal design of PID parameter. On the basis of the design and research of the advanced PID parameter tuning, the mathematical model-transfer functionis developed through correlation analysis on statistical method.And with the optimization algorithm under constraint condition, the non-linear, Isqnonlin is set as object function. Then with connection of the non-linear constrain optimization algorithm and simulink technique, a set of adjust parameters which fit the performance index of the control system are found. And optimization design process and steps are provided.

本文以非线性控制系统PID参数整定为工程背景，以PID参数的优化设计为目标，在分析和研究国内外PID参数先进整定方法的基础上，运用相关分析实验统计方法建立对象的数学模型——传递函数，把PID参数设计问题转化为一种非线性优化设计问题，借助于约束条件下的优化算法，以非线性最小平方指标为目标函数，将非线性约束优化算法同Simulink仿真技术相结合，找出符合控制系统品质指标的一组调节参数。

According to the lack of the original reliability parameter and the necessity of exploiting original reliability parameter small stylebook,a linear combination forecasting model of original reliability parameter of power systems is proposed.

针对电力系统可靠性原始参数缺乏和开发可靠性原始参数小样本的需要，提出了电力系统可靠性原始参数的线性组合预测模型。

The experimental plot situated at the middle of Sichuan Basin, the peculiar resource of purple soil and subtropic climate make it become the principal part of Sichuan agriculture.This paper,using Soil Conservation Service Curve Number method,calculated the volume of rainfall runoff in 2005, through calibrating the parameter Ia and parameter CN. it can received the suitable range of parameter, and the arverage error are respectively 6.46%,10.22% and 8.40%. It also show the feasibility that the application of SCS model to estimate the volume of rainfall runoff in sloping field of purple soil

此次试验地位于四川盆地中部，独特的紫色土资源与亚热带气候的最佳组合成为四川农业的主体区域，运用SCS模型计算试验小区在2005年的三场降雨产生的径流量，通过校正Ia和CN参数，小区计算值和实测值的误差分别为6.46%，10.22%和8.40%，得到了可信度较高的结果，同时说明了SCS模型在估算紫色土流域径流量的可行性。

Estimations of effective parameter in heterogeneous media: Firstly, we clarify the concept of the effective parameter and address the problems of parameter estimation by traditional pumping test. Secondly, we present two estimation approaches (i.e., distance-drawdown and spatial moment analyses) for Seff and Teff, which are consistent with Theis' homogeneous aquifer assumption.

本文探讨的内容主要分两大部分：(1)空间异质性孔隙介质有效参数的推估方法：主要探讨内容包括重新思考有效参数的定义及其观念，探讨传统抽水试验推估异质性含水层有效参数的一些问题，其次提出估计异质性地下水系统有效参数两个合理方法：泄降-距离曲线分析和泄降分布的空间矩分析，并以数值实例解释其合理性，文中藉由分析数值模拟的结果探讨说明该问题。

This paper researches the improvement of the vector of unknown parameter α and the vector of random-effect parameter β, including GLSE and LSE in some conditions, discusses the relevant properties of parameter's estimation, and explains the thought of using its unbiased estimator replaced when the variance is unknown.

本文研究了未知参数向量a和随机系数β的参数估计的改进，包括在一定条件下的GLSE和LSE，并讨论了参数估计的有关性质及说明了在方差未知时，用其无偏估计代替的思想。

Motibity changed by gear-box in direction and rotate speed is transferred to the blade axis on the right side to drive the blade axis. blade axis'parameter, blade assembling frame and blade assembling means are ascertained. The load and movement of the blade axis are analyzed. And the best blade rotate speed is ascertained. According to the request of no-tillage soil, the appropriate furrow openers are chosen. They are staggered and assembled in two rows .According to the sliding cutting request, the crucial parts of the anti-blocking——the sliding cutting blade, its edge curve is analyzed and designed in principle. The academic curve function is gotten. Combined with working practice and technics request, the blade's figuration parameter is designed, 65Mn is chosen as the material for blades. The working load is analyzed. And the intension of the sliding cutting is analyzed and checked with ANSYS software. At last, the spring rack of the suppress wheal is analyzed in principle. The theory and parameter of designing the spring rack of the suppress wheal. Experiment indicated that the anti-blocking capability of this anti-blocking equipment was excellent.

设计出适合此防堵装置的动力传输方案，动力经变速箱变向变速后从右侧传给刀轴，驱使刀片切割秸秆；确定出了刀轴的参数、刀片的安装结构和安装方法，对刀轴的受力和运动进行了分析，确定出了刀轴最佳转速；根据免耕地的要求，选择恰当的开沟器，并采用双排错位安装的办法，避免了"瓶颈"现象的发生；根据滑切的要求对此防堵装置的关键部件——滑切刀片的刃口曲线进行了理论分析和设计，得到了刀刃的理论曲线方程；结合生产实践及工艺要求，设计出刀片的外形参数，选择65Mn作为刀片的材料；分析和计算了刀片在工作中承受的载荷，运用ANSYS 软件对滑切刀片的强度进行了分析校核；最后对镇压轮的弹簧支架结构进行了理论分析，提出了设计镇压轮弹簧支架的理论和参数依据。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。