转换的

Based on the A / D converter the basic principles and characteristics of the broadband A / D converter technology and A / D converter, the choice of a number of exploration and study.

本文基于A/D转换的基本原理和特性，对宽带A/D转换技术和A/D转换器的选择进行一些探讨和研究。

The present essay pays attention to the following researchquestions:(1) actual functions of Cantonese-English CS inapplication;(2) some problems existing in the application ofCantonese-English CS;(3) future development of Cantonese-EnglishCS.

本文将重点研究三个问题：（1）粤英语码转换在话语中的实际功能；（2）粤英语码转换中存在的问题；（3）粤英语码转换的发展预测。

The mechanism of fertility conversion of temperature sensitive genic male sterile line in maize was studied by the methods of sowing with stages and investigating leafage.

利用分期播种和田间跟踪调查叶龄的方法，以琼 6Qms为材料研究了玉米温敏型核雄性不育的育性转换机制，结果表明，日最高温度是育性转换的主要因子，表现出低温可育，高温不育，育性转换的温度区间为 2 7～ 31℃；同时日照长度对育性转换也有一定的影响，表现为长日照不育，短日照可育。

However, the transformation rate from dominant stem to overtopped stem and from overtopped stem to dominant stem were the lowest. The interconversion of classified stem would increase as the stand density and the rate of L. gmelinii was going up. The altitude that classified stem mainly concentrated was less than 1000m, slope was less than 25°, aspect was south slope, position was at middle and lower, soil depth less than 17cm. The rate of no interconversion was 66.7% among overtopped stem. It should cut the overtopped stem as intermediate cutting.

优势木转被压木和被压木转优势木的转换率最低；随着林分密度和林分中落叶松比例增加，分级木相互转换数也增多；分级木转换现象主要集中在海拔＜1000m、坡度＜25°、坡向为阳坡、坡位为中下、土壤厚度＞17cm的林分中；被压木中，无转换的占66.7%，抚育采伐时应考虑伐除这些被压木。

It is advanced firstly that trilingual education is based upon the multicultural education pedagogically and upon the development of bilingual education theoretically and practically. In addition, the research into trilingual code-witching becomes all the more important and significant due to the fact that trilingual education is a newly-developed research subject. The present study is of considerable significance in that it not only enriches the research of code-switching both in general setting and in classroom context, fosters conceptualization and implementation of trilingual education, but provides the implications for the EFL education for ethnic minority learners.

本章首先指出多元文化教育思想是三语教学的教育学基础，双语教育的蓬勃发展是三语教学的理论和现实基础，而三语教学研究的前沿性和创新性则为三语环境下教师课堂语码转换研究提供了广阔的生长空间和全新的研究意义；就研究意义而言，本研究在丰富和发展语码转换和课堂语码转换研究，对三语教学理论构想和实施，以及对民族外语教育的启示等方面都有重要理论和现实意义；本研究的特色与创新表现在对三语环境下教师课堂语码转换的影响模式及生成机制的构建，对三语教学的文化生态分析，对三语教师话语特征的解读，对三语环境下外语教育的课程特征、语言价值和文化追求的阐释，以及研究设计的特色与创新上。

This paper discuss the key techniques used in Stroke to Raster Scan Conversion: The fundamentals of video scan conversion. A practical scan conversion system based on CPLD is proposed, in which CPLD is used to control SRC system flexibly and it realizes stroke to taster scan display system conversion.

本论文分析了随机扫描到光栅扫描转换的关键技术，即视频扫描转换的基本原理，并给出了一种实际实现方案，构建了以CPLD为控制核心的扫描转换硬件系统。

In this theory, we firstly introduce the basic theory of discrete wavelet transform and lifting scheme. Secondly, we adopt a fully pipelining VLSI architecture for lifting-based DWT. Hence, we can operate on higher working frequency. Besides, we merge a QCB-based DWT method to achieve the higher parallelism for JPEG 2000 encoding system. By changing the output timing of the DWT process, the internal tile memory size can be reduced by a factor of 4. Moreover, the architecture can efficiently perform shape-adaptive DWT and solve boundary extension and subsampling problems. Finally, according to the comparison results with other architectures, the efficiency of proposed architecture is proven.

在这篇论文中，首先我们介绍离散小波转换和提升式架构的基本理论，接下来我们改良提升式架构采用全管线化的硬体架构，因此我们可以操作在较高的工作频率，并且我们合并了以四个编码方块为基础的方式来使得JPEG 2000编码系统具有更高的平行度，藉著改变离散小波转换的输出时序，内部的记体体需求可以减少为原本的四分之一，接著此架构也可以有效地支援可适应形状的离散小波转换，同时解决了边界延伸和子取样的问题，最后根据与其他架构比较的结果，来说明所提出之离散小波转换架构的贡献。

The inverted wavelength conversion of the nonreturn to zero and the format conversion from NRZ to pseudo return to zero are demonstrated synchronously based on single SOA and an optical bandpass filter with 0.32 nm bandwidth. The conversion results depend on the OBF detuning as respect to the probe carrier.

利用半导体光放大器和带宽为0.32 nm的可调窄带滤波器同时实现了40 Gbit/s的非归零信号的反相波长转换和非归零到伪归零信号的码型转换，波长转换和码型转换的结果差异取决于滤波器中心波长相对于探测光波长的失谐量。

This paper proposes an approach for formalizing transformation constraints with graph productions.

提出了一种基于图转换的特性保持约束描述机制，将模型演化与重构中的转换规则以及特性保持约束都描述为图转换规则。

On the basis of the mathematical models got by different measuring methods, a complete universal mathematical model was put forward by which different tappets lifts can be converted from one to another.

针对凸轮升程测量量具及方法不统一而造成升程转换困难及转换误差较大等问题，在研究凸轮升程各种测量方法数学模型的基础上，提出一个不同形式推杆升程相互转换的通用数学模型。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。