The first one is about how to build the connection between describing function method and phase plane method through limit cycle analysis.
第一个是关于如何通过极限环分析建立描述函数法与相平面法之间联系；
Using the describing function method, this paper gives emphasis to analyse the conditional feedback correction effect on restrain self-sustaining oscillation.
本文利用描述函数法，重点分析了条件反馈校正对自持振荡的抑制作用。
With the rate limiting element in man machine closed loop system, we analyse the PIO using the method of describing function.
然后将速率限制环节置于人机闭环系统中，利用描述函数法对驾驶员诱发振荡（PIO）机理进行了研究。
After describing the implementing method of all function modules of the prototype system, this paper summarizes characteristics of this design, and gives some conclusions.
在描述了该原型系统各个功能模块的实现方法之后，文中总结了本次设计的特点，得出结论。
The level set method was adopted to describing the structural topology and its change, and the compactly supported radial basis function was introduced to getting the parametric level set method.
采用水平集方法描述结构的拓扑及其变化，使用紧支径向基函数对计算区域的水平集进行插值以得到参数化的水平集方法。
Describing the concept, purpose, function, elements and procedures of the system analysis this paper focuses on the evaluation method and layer analysis technique of the modern system in detail.
在简述系统分析的概念、目的、作用、要素和步骤之基础上，详细论述现代系统评价方法和层次分析技术。
A method for describing heterogeneous media and fractional Brownian motion are introduced. The spectral density function of fractional Brownian motion is used to simulate the heterogeneous media.
介绍了非均匀介质的描述方法与分数布朗运动，并用分数布朗运动的谱密度函数模拟非均匀介质。
Through describing communication function of VB and HART protocol commands the design method of PC configuration software based HART protocol is described in detail.
通过对VB通讯功能和HART协议命令方式的描述，详细介绍了基于HART协议的PC组态软件的设计方法。
A new method of determining the function of describing shape was presented.
提出一种确定形状描述函数的方法。
Describing the astronomical refractive mapping function and a new continued fractional mapping function derived with the atmospheric refractive generator function method.
介绍了由大气折射母函数方法引出的大气延迟新连分式映射函数和天文大气折射的映射函数方法。
Describing the astronomical refractive mapping function and a new continued fractional mapping function derived with the atmospheric refractive generator function method.
介绍了由大气折射母函数方法引出的大气延迟新连分式映射函数和天文大气折射的映射函数方法。
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