单频的

The common equation of the evolution of spectrum caused by selfphase modulationis presented, which is the convolution of action spectrum and chirped spectrum caused by selfphase modulation when carrier frequency is single.

给出了由自相位调制引起的频谱演变的普遍表示，即单载频脉冲的SPM引起的啁啾频谱与光源的频谱的卷积，通过数值计算给出从相干脉冲到非相干脉冲的频谱演变规律。

Various spectral-temporal cues extracted from the model are used for monaural speech segregation. Then, a self-organizing feature map neural network is utilized to mimic the neural function in segregating and clustering a mixed sound into separated sounds.

我们从此模型中取出不同在时域-频域上的一些使用於单耳语音分离系统的线索，之后，利用自组织映射图来模拟神经元将混合的语音分组和归类成分开的语音。

Often divided into two types:(1) sine wave oscillator, according to the network oscillation frequency of the different loop selected further divided into RC sinusoidal oscillator, LC sinusoidal oscillators, quartz crystal oscillators, voltage-controlled oscillator, voltage-controlled crystal oscillator and other forms;(2) non-sinusoidal oscillation device, also known as relaxation oscillator, is the use of capacitor charging and discharging and active device (transistor, FET, single-junction transistor, etc.) to generate the pulse-off square wave, rectangular wave, triangle wave, sawtooth wave, or these basic waveforms synthetic waveform and its frequency by the LC time constant charge and discharge circuits to decide.

常分两大类型：（1）正弦波振荡器，根据振荡环路中选频网络的不同，又分为RC正弦波振荡器、LC正弦波振荡器、石英晶体振荡器、压控振荡器、压控石英晶体振荡器等多种形式；（2）非正弦波振荡器，又称张弛振荡器，是利用电容充放电及有源器件（晶体管、场效应管、单结晶体管等）的通断来产生脉冲方波、矩形波、三角波、锯齿波或这些基本波形的合成波形，其工作频率由LC充放电电路的时间常数来决定。

The dissertation contains three chapters: Chapter One Phonetic Study On Tones and Tone Sandhis At first, the author introduces the traditional dialectological description and analysis on the tones and tone sandhis of the Shanghai dialect.

先介绍传统方言学对上海方言声调的描写与分析，再用现代语音学的方法，对上海方言的单音节声调和两类双音节连读变调的声学特性（基频F0和时长）作出描写和分析。

Grounding on the purpose of industrialization of laser, based on the thought of astigmatism compensation and thermal stability of the cavity, we employed high power LD to pump Nd:YVO4 crystal and used the introcavity frequency doubling with type 1 noncritical phase-match LBO crystal, which has high damage threshold. The cavity parameters are optimized by the use of ABCD theory and the resonatorstructure CAD software.

立足于激光器的产品化，基于谐振腔的像散补偿和热稳定性的设计思想，采用大功率LD单端泵浦Nd：YVO_4晶体，具有高光损伤阈值的Ⅰ类非临界相位匹配LBO晶体腔内倍频方案，应用ABCD定律和腔结构模拟软件CDA设计并优化了一组腔参数。

Meanwhile, comparative analysis indicates that the same weighting function will be produced between the proposed methods for motion error measurement and the ordinary frequency domain three-point method for straightness error measurement, and the homology and unitarily in nature will be confirmed.

权函数的对比分析表明：先行分离出运动误差的单信道或多信道二次相移数据重组法与先行分离出形状误差的普通频域三点法具有相同的权函数，它们在本质上具有同源性和统一性。

The principle of phase-matching and the technology of single-axis and double axises phase-matching as well as the phase matching width is introduced;The main features and optical properties of Nd:YVO_4 and KTP are given.

介绍了相位匹配原理，分别对单轴和双轴晶体的相位匹配、相位匹配宽度做了详细分析；介绍了实验所用的激光晶体板条状Nd：YVO_4的基本特性和光学特性及倍频晶体KTP的光学特性。

A hardware design of single chip GPS receiver is presented which uses Infineon Technologies and Global Locate's Hammerhead.

为了满足使用的需要，介绍一种基于Hammerhead芯片实现单芯片全球定位系统接收机的硬件设计，提出了射频印刷电路板(Printed Circuit Board，PCB)设计的解决方案。

ABSTRACT This thesis mainly aims to build a F0 contour modal for parameter synthesis of Mandarin, which can be used to synthesize monosyllables, disyllables and trisyllables more naturally.

本文的研究工作致力于探索一种供参数合成法使用的，能够提供接近自然语言的汉语单音节、两音节组和三音节组的基频曲线建模方法。

In the design of W band double-balanced mixer, a novel structure using Magic-T and two baluns, which all realized by ratrace, is proposed with no crossing of transmission line.

在W频段双平衡混频器的设计中，本文提出由混合环构成的魔T与巴伦级连而成的功率混合电路，这种新颖的电路结构使整个电路单平面化，避免了任何跳线。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷