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Based on detailed analysis for the principle of 8255 programmable parallel interface working...

在详细分析8255可编程并行接口芯片工作方式2原理的基础上，以采用8031CPU构成PC机智能接口卡为例，论述了采用两片8255实现PC机与智能接口卡间并行通信的方法，给出了具体接口电路，并详细分析了该接口电路的工作原理及特点。

Our reform on institution of supervision and protection to parolee should abide by the principle of special institution guiding and social factor assisiting .

对我国假释犯监督管理机构改革应遵循"专门机构主导，社会力量配合"的原则进行。

This thesis discussed three kinds of major technologies to reduce high PAR on the basis of the principle of OFDM system: pre-distortion technology techniques (clipping and filtering, peak windowing and companding technique), code techniques (Reed-Muller coding algorithm of Golay complementary sequence), and scrambling techniques (selected mapping, partial transmit sequence and selective scrambling), these techniques have some certain limitations.

本文在介绍OFDM理论的基础上，专题讨论了抑制高峰值平均功率比的三类主流技术：信号预畸变技术(限幅滤波、窗函数和压扩技术)、信号编码技术(Golay互补序列的Reed-Muller编译码算法)和信号扰码技术(选择性映射技术、部分传输序列技术和选择性扰码)。

The potential effects of this principle on the pattern of innovation, production, and consumption of electronic products are addressed.

本文详细论述了电子废物问题与电子产业技术创新及生产全球化过程的关系，分析了发达国家将延伸生产者责任原则应用于电子废物管理对电子产业创新、生产和消费模式可能产生的影响，以及典型国家和地区的管理实践经验和有关争论。

Undergraduate internet moral education utilizes computer network to implement moral education on undergraduate, according to pedagogics, the principle of mass communication and the theory of political and ideological education.

大学生网络德育，是根据教育学、传播学原理和思想道德的理论，利用计算机网络对大学生所进行的道德教育。

Based on the concept of frequency analysis in periodic orbit theory and matrix principle, a method of changing fundamental frequency of chaotic systems is put forward.

文中基于混沌吸引子周期轨道理论的频域分析概念和矩阵分析原理提出了一种混沌系统基波频率变换方法。

This article introduces the principle of photocatalysis and methods for application on air purification.

本文透过光触媒原理的介绍，希望读者了解光触媒的基本作用原理，并介绍光触媒在空气净化之应用方式及应用的实例，期读者对光触媒在空气净化之应用上，能有正确的观念。

Based on the view of plate tectonics, this paper discussed the division of tectonic units in principle.

以板块构造观点讨论了构造单元的划分原则。

This paper analyses the principle of work of a type of control system based on power line carrier technique.

介绍一种51单片机基于电力载波技术的控制系统的工作原理和结构。

Given the principle of exclusion of prejudgment is a totally new subject, this article is a trial research on it. It is inevitably with some limitation.

由于预断排除的主题在我国学术界尚显新奇，本文仅仅是做了一点尝试性的初步探讨，一些地方都是首次提出或者涉及，因此可能还存在诸多缺陷。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。