查询词典 bypass channel

As the competition is getting fiercer and fiercer, the media all over the world emulatively build their own channel brand. Being the only national news channel, CCTV News Channel represents the highest level of TV news broadcast in China mainland and is an important bridge for China communicating to the world. The brand building of CCTV News Channel will play an important role not only to itself, but also to the development of CCTV.

在电视传媒竞争日益白热化的今天，世界各地的媒体机构都在竞相打造自己的频道品牌，作为中国大陆唯一一个国家级的新闻频道，央视新闻频道可以说代表了大陆电视新闻传播的最高水准，是中国和世界沟通的一个重要桥梁，央视新闻频道的品牌塑造不仅对频道本身乃至对整个央视的发展和影响力都有着举足轻重的作用。

On the plane, the above subfacies can be divided into distributary channel, inter-channel depressions, subaqueous distributary channel and inter-channel bays.

研究区长3期主要发育曲流河三角洲沉积体系，可划分为三角洲平原亚相和前缘亚相，在平面上可划分为分流河道微相、分流间洼地微相及水下分流河道微相及分流间湾微相四种微相类型。

According to the theory of hierarchical description of reservoir, geological entities of different orders is described step by step in Lamadian oil-field, and the technical standards which can be convenient to manipulate is established. Otherwise 7 kinds of fine depositional models such as large-sized depositional sandbody of braided river, meandering river, low-sinuosity-straight distributary channel, crevasse channel, channel bar, subwater distrbutary channel and sandsheets are established.

中文摘要本文根据储层层次描述原理，在宏观上对喇嘛甸油田不同级次的地质实体进行了逐级描述，确立了各个技术环节便于操作的技术标准，建立了大型砂质辫状河砂体沉积、大型曲流河沉积、低弯曲-顺直型分流河道沉积、决口河道沉积、心滩沉积、水下分流河道沉积、薄层席状砂体沉积7种类型精细的沉积模型。

Through simulation and computation, some critical values to contral interferences are obtained. These values have directive significance to the design and deployment of WRAN.(4) New methods to measure and analyze spectrum aredevelopedAccording to the shortages of previous spectrum measurements, new methods to measure spectrum occupancy in wide-band and multi-point synchronously is proposed in this dissertation, and the tests last a whole week; the relativities of licensed services are considered when test points are selected. More importantly, data mining and in-depth analysis are carried out with the huge amounts of test data, and a channel analysis method using Channel Vacancy Duration and Service Congestion Rate are proposed. The spectrum relativities of 3-dimension in time, space and frequency are researched also. The correlativity between channel state and history information is discoved, and which will provide the scientific basis to channel modeling, spectrum analysis and decision of CR users.

4提出了频谱测量与分析的新方法针对以前频谱测量工作存在的不足，本文提出了多点同时广域频谱测量方法，测量工作持续了一周的时间，同时考虑了测量地点的选取和频谱授权业务之间的相关性；对测量得到的海量数据进行了数据挖掘和深度分析，提出了使用信道空闲时间(Channel VacancyDuration，CVD)和业务拥塞率(Service Congestion Rate，SCR)进行信道分析的方法，研究了频谱之间的时间、空间、和频率三维立体的相关性，发现了信道状态和历史信息的关联性，为CR用户的信道建模、频谱分析和决策提供了科学的理论依据。

Comparing with the result of methyl iodide in intense laser field, some differences are observed:(1) at the same laser field intensity, the highest charged fragment ion of methyl bromide was Br(superscript 3+), lower than I(superscript 6+) of methyl iodide;(2) the dehydrogenation channel was observed in the multiphoton dissociation or Coulomb explosion of methyl bromide, but was not observed in the case of methyl iodide;(3) HBr(superscript +) was observed, but there was no similar channel in the case of methyl iodide;(4) for methyl bromide, the valid charge distance of Coulomb explosion increases with the product of p and q; while in the case of methyl iodide, the distance remained almost the same;(5) the producing channel of CH(superscript + subscript m)(m=0, 1, 2) is different from the ionization-dissociation of methyl iodide in which the stepwise dissociation of CH3(superscript +) was thought to be the main channel, CH(superscript + subscript m)(m=0, 1, 2) of methyl bromide are mainly from the products of the direct dissociation of the dehydrogenated parent ions instead of the stepwise dissociation of CH3(superscript +).

与碘甲烷在强场中的实验结果对比发现：(1)在相同的激光场强下，碘甲烷电离解离的最高价碎片离子为I(上标 6+)而溴甲烷为Br(上标 3+)；(2)溴甲烷质谱中存在母体离子的脱氢产物CHBr和CHBr(上标 2+)，而对于碘甲烷，没有检测到这些通道，C-I键首先断开；(3)质谱中存在H^79Br和H^81Br，而碘甲烷的电离解离中不存在HI产物；(4)溴甲烷库仑两体爆炸的有效电荷间距随着两碎片电荷乘积的增大而增大，而对于碘甲烷此间距几乎不随电荷乘积变化；(5)CH(m=0， 1， 2)的主要生成通道可能与碘甲烷不同，不是来自CH3的顺序脱氢，而是来自脱氢母体离子的直接解离。

The method includes following steps:(1) initial frequency selection;(2) based on modulation mode adopted, the sending end carries out symbol mapping, changes signal spectrum based on label information of sub channel, and sends signal in time domain;(3) based on label information of sub channel, the receiving end carries out equalization for received signal, demodulates signal and accomplishes judgment;(4) carrying out channel estimation or prediction, the receiving end obtains updated information of signal state, and determines whether label information of sub channel is needed to update based on self-adapting judgment rule.

本发明提供了一种移动宽带信道中的自适应选频分块传输方法，该方法包括以下步骤：(1)初始选频；(2)发端根据所采用的调制方式进行符号映射，根据子信道标记信息改变信号频谱，并发送时域信号；(3)收端根据子信道标记信息对接收信号进行均衡，解调信号并完成判决；(4)收端进行信道估计或预测得到更新的信道状态信息，根据自适应判断规则，判断是否需要更新子信道标记信息。

In chapter Ⅵ, at first, we shall use the quantum channel language to describe a quantum noisy system, and construct a lossy channel; and then we shall estimate the depolarizing channel and the lossy channel.

第六章我们将首先应用量子通道的语言描述一个量子耗散系统，然后分别讨论对退极化通道与耗散通道的评估问题。

Then we take the two channel type (on-line channel and traditional channel) to be permuted as eight channel combination.

并以实体、虚拟两种通路在此六个阶段中进行组合，产生八种通路组合。

Through the analysis of 11 typical mesoscale convective systems occurring at China continent and adjacent ocean on June, July and August, 1998,it is found that 10.65 GHz_ V channel and 19.35 GHz_ V channel can well response to the absorbability and emission of liquid water in cloud and precipilation, and that 85.5 GHz_ V channel and 37.00 GHz_ V channel can response to the ice scatting in cloud well .

通过对1998年6—8三个月内发生在我国大陆和邻近洋面上的11个中尺度对流系统的分析，发现10.65和19.35GHz垂直通道能较好的反应云中液态水和降水的吸收和发射；85.5和37.0GHz垂直通道能较好的反应云中冰晶冰粒的散射。

Fast channel sensing is for a pair of cognitive radio users to search an available channel time-efficiently; proactive channel vacating is for the pair of cognitive radio users to be aware of the presence of primary users and vacate the occupied channel as quick as possible.

快速频道感测是针对一对感知网路使用者找寻可使用的频道；主动释放频道是让感知网路使用者察觉主要使用者要使用频道时，能快速的释放频道给主要使用者，避免干扰。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。