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This algorithm firstly translates arbitrary parameter curves into the piecewise cubic-degree Bezier curves, then using the properties of Bezier curve we can get the tangent vector and the normal vector of every point on the approximation curve, and calculate the approximating offset curve.

此算法先将任意形式的参数曲线转化成分段三次Bézier曲线，利用Bézier曲线的性质容易得到逼近曲线的切向量和法向量，从而计算出其等距逼近曲线。

The article advanced some methods on how to solve this kind of problems. Firstly, help the students find their confidence. Secondly, let the students who are arbitrary know the value of the friendship. Thirdly, let the students who are cowardly be brave.

本文结合部分学生存在的心理问题，探索了对盲生进行心理健康教育的方法：首先是让自卑的盲生找回自信；其次让"霸气"的盲生懂得友谊的可贵；再次是让胆怯的盲生大胆起来。

This article firstly analyse the conception and related technology of MEC, the architechure of Wireless Application Protocol cluster and application programming model. And deeply research for its security credit system, including encrypt arithmetic, Public Key Infrastructure theory, Wireless PKI technology and so on.

本文首先分析了移动电子商务的概念和相关技术，WAP协议簇的体系结构和应用编程模型，并对其安全信用体系进行了较为深入的研究，包括加密算法、PKI原理、WPKI技术等方面。

Firstly, the advanced control strategy and the theory of embedded operation system was introduced. Secondly, the whole realization architrave of the system was brought forward, including hardware and software. Concrete realization was detailedly presented.

论文首先对各种先进智能控制技术和嵌入式操作系统的原理进行了介绍，在此基础上确定了整个实验系统的总体实现框图和流程图，并对系统的具体实现进行了详细地介绍。

Firstly, a history of philosophy may also be written argumentatively and with an emphasis on its relevance for today's thinking.

首先，也可以论辩式地编写哲学史，强调哲学史对今天思想的意义。

As the base of Judge interpretation,Argumentum and Disposition doctrine are firstly introduced,and then the relation.

首先对作为释明权基础的辩论主义与处分权主义进行了介绍。

Firstly it describes the development ,basic principle and application and propagation characteristic of mobile channel , then investigates the system structure of DAB transmitter and receiver separately and the key technology of realization of the digital audio broadcast system.And then discusses the system component of FFT －the demodulation module of OFDM .The 409- points FFT module employs a radix-4 decimation-in-frequency algorithm, includes arithmetic element , read and write address element ,twiddle factor element and control element , is realized by FPGA. In the end , the result is verified in the matlab .

首先概述了OFDM的发展、基本原理和应用以及移动信道的传播特性，接着分别研究了数字音频广播接收机和发射机的系统结构，以及数字音频广播系统实现的关键技术，然后详细论述了OFDM解调模块FFT的系统结构，主要研究了4096点FFT采用基－4按频率抽取实现的算法，整个FFT模块包括了运算单元、读写地址单元、旋转因子单元以及控制单元，并且在FPGA中进行了硬件实现，并在matlab环境下对结果进行了验证。

Firstly,the Gauss map of points on the cylinder and a random sampling method are used to compute the rotation axis equation of the simple articulator.

首先通过构造圆柱面上点的高斯图和任意采样的方法，计算出简单牙合架转动轴线方程。

In this paper, the study progress of rhodamine dye type in recent years and the reaction mechanism and the methods of aryl methyl oxidation to the fragrant aldehyde group were firstly introduced.

在本论文中，首先介绍了近年来罗丹明类染料的研究进展和芳甲基氧化生成芳醛基的反应机理、方法。

Firstly,Yao's physical growth.Back in 2002Yao was ashy,lanky 22year old.

第一，姚明的体力。2002年时他照旧一个害羞、瘦长的22岁年青人。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。