查询词典 radio transmission

The paper applies frequency domain model of transmission system to analyze the frequency characteristics of transmission line, busbar and line trap. Then presents that the surge impedance of busbar capacitance and line trap is different from transmission line, and based on which proposes the concept 'line boundary'.

为此从输电系统的频域模型着手，全面分析了输电线路、母线和阻波器的频率特性，指出母线对地等效电容和阻波器的阻抗显著地不等于线路的特性阻抗，由此提出&线路边界&的概念。

Rigidity of transmission chain must be calculated in precise transmission, especially in precise transmission of close control.

精密传动，尤其是位置闭环的精密传动，必需计算传动链的刚度。

Summary: This text mainly introduces the parameters and structure principle of X62W type horizontal milling machine for fork of transmission, with wheel and spring chuck design calculate, choice and use of cutter and electrical machinery, preparation method course and choices of different standard component of part. X62W type horizontal milling machine for transmission fork of transmission is one set of semi-automatic horizontal mill special plane. It regard current X62W type miller as the half automatic on that stir the fork special airplane.

本文主要介绍了X62W型卧式拖拉机拨叉铣专机设计的性能参数、结构原理，带轮、弹簧夹具的设计计算，刀具的选择和使用，电机的选择以及使用，零件的加工工艺过程以及各种标准件的选择。X62W型卧式拖拉机拨叉铣专机是一台半自动卧式铣专机，它是以现役的X62W型卧式铣床为基础设计出的新型半自动卧式铣拨叉专机。

Summary: This text mainly introduces the parameters and structure principle of X62W type horizontal milling machine for fork of transmission, with wheel and spring chuck design calculate, choice and use of cutter and electrical machinery, preparation method course and choices of different standard component of part. X62W type horizontal milling machine for transmission fork of transmission is one set of semi-automatic horizontal mill special plane. It regard current X62W type miller as the half automatic on that stir the fork special airplane.

本文主要介绍了X62W型卧式拖拉机拨叉铣专机的性能参数、结构原理，带轮、弹簧夹头的设计计算，刀具的选择和使用，电机的选择以及使用，零件的加工工艺过程以及各种标准件的选择。X62W型卧式拖拉机拨叉铣专机是一台半自动卧式铣专机，它是以现役的X62W型卧式铣床为基础设计出的新型半自动卧式铣拨叉专机。

Based on the six-wheel mobile robot, research on the robot tumbler joint transmission device has been done. Through comparing various transmission devices, the RV transmission mechanism is studied.

本文以六轮腿自主移动机器人作为研究平台，重点对机器人转臂关节传动装置进行了设计研究，在比较多种传动装置优缺点的基础上，采用RV传动机构作为研究对象。

The method of fault analysis for six-phase transmission is very complicated, and the research on the protective scheme for six-phase transmission lines is few at the present time, and it had badly confined the practical application of six-phase transmission.

在我国由于耕地面积的减少和地理环境的制约，节约线路走廊占用空间，提高线路的功率传输密度已经成为电网建设需要考虑的一个重要因素，在这方面六相输电方式有着独特的优势。

In 1992, a three phase double circuit line between Goudey and Oakdale station was reconstructed to six-phase line and was operated commercially by New York state electric and gas. It is a milestone from theoretical research to practical application in the development of six-phase transmission.With the decrease of cultivated land and the environmental problem in china, it is an important factor to improve power transmission density in the construction of electric network, and the predominance of six-phase transmission is obvious in this aspect.

六相输电是多相输电的一种，在国外六相输电技术作为提高输电线路功率传输密度，节约线路走廊空间的重要手段得到了充分的重视，对六相输电技术的研究也取得了很大的进展。1992年，美国纽约电力和天然气公司将Goudey到Oakdale之间的一条双回线路改造成了六相输电线，并且已经投入了商业运行，这标志着多相输电技术已经从理论研究向实际应用迈出了重要的一步。

On the basis of network transmission using architecture of MPEG-4,and combined with the characteristics of object-based encoding and interaction in MPEG-4,this paper presents a transmission framework design to support interactive multimedia scene,which makes end users to choose their interested contents to compose corresponding scene,controls multimedia data transmission and interacts with sever side to modify scene in real time.

0引言目前大多数多媒体服务提供的仅是单个音视频或具有2D功能的视频流的传输和播放，但MPEG-4标准为合成描述、压缩、存储自然和合成的音视频数据提供了一个广泛的框架，它以媒体对象为基础，通过对象操作可使用户在接收端直接将不同对象进行拼接，得到用户自己合成的图像，也允许

Based upon our first paper and continuing the "Standard candle" classification by use of the component linear distance D, we attain to the following statistical correlation of some type of Quasars with largest angular diameter Q_: the correla- tion between visual magnitude and redshift; the correlation between its absolute magnitude, radio-luminosity of single frequency, integral radio Iuminosity, colour in- dex difference Q and D.

本文在第I部分的基础上，继续用类星体射电子源线距D进行"标准烛光"分类，经过统计分析，得到了子源角径最大的一类类星体的一些统计规律：它的视星等与红移之间，它的绝对星等、单频射电光度、积分射电光度和色指数差Q与D之间有很好的相关性等。

Blazars are one of the most extreme classes of active galactic nucleus, with high luminosity, large amplitude and rapid variability, high and variable polarization, radio core-dominance, and apparent superluminal speeds. Their broad band emission extends from radio up to gamma-ray band, and is dominated by non-thermal process.

中文摘要：在AGNs中，Blazar天体是具有极端性质的一类，它以大幅快速光变、高且变化的偏振、射电核主导、视超光速运动、全波段非热辐射为主要特征。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48