传输电缆

The optical fiber transmission techniques have been applied to a wired television transmission network, and replacing the long—distance cable backbone, and application of the co-axial cable advantages as of the transmission medium has formed a concept of Hybrid Fiber Coaxof the branch and going to-some place by distribution.

光传输技术在有线电视传输网网络的应用，取代了长距离的电缆干线，而利用同轴电缆的优点作为支线及分配入户的传输媒质形成了HFC的概念，即光纤电缆混合网。

The wires serve as the preferred conductor of CATV coaxial cable,RF cable,leak cable and other high-frequency cables,and ideally suited for most electrical conductor applications,war industry ,aviation,IC plugs,instruments plugs,motor,transformer loop,TV degaussing loop,defluxion loop,especial high conductor and high intension spring,line,shiele net and so on,the field is very wide.

在原有的应用领域同轴电缆、射频电缆、漏泄电缆等高频信号传输领域的基础上，向电力电缆、控制电缆、军工、航空、电子元件接插件、仪器仪表连接线、电机、变压器线圈、电声线圈、电视机消磁线圈和偏转线圈、特种高导电率高强度弹簧、绞线、射频屏蔽网等更广泛的应用领域扩展。

Cable transmission has its intrinsic advantages and it is the development tendency of intelligent drilling among all kinds of signal transmission.

在钻井的各种信号传输中，电缆传输有着固有的优点，是未来智能钻井信号传输的发展方向。

It can replace the traditional cable transmission.

针对相控阵雷达天线单元和信号处理机之间的数据传输，设计了一种光纤传输系统，它可代替传统电缆的传输方式。

The thesis based on Yellow River Diversion Project. Through the research of the existing design of the supervising system of Yellow River Diversion Project, this passage pointed out some problems hard to be dealt with as follows:(1) Owing to the dispersion of control points and remote transfers of data, it cost a lot to construct the network of the supervising system and it was hard to implement the construction.(2) The connection mode of network needed to be taken into acount. Once the configuration of network changed or the nodes increased, the supervising system needed to be reconfigured.(3) Owing to the tanglesome physical communication line, the man-made communication error happened frequently.(4) When the communication malfunction occured, it needed various engineers to check and repair the fault.(5) It cost a lot to operate and maintain the supervising system.

本文以世界银行援建项目&Yellow River Diversion Project&(引黄入晋工程，编号：0015-K81062)为背景，在对引黄入晋工程的远程监控系统进行研究分析的过程中，指出了该系统在目前采用的有线光纤和有线电缆通讯技术下难以处理的一些问题：(1)由于监控点分散且传输距离较远，有线光纤和有线电缆的网络建设成本很高，实施困难；(2)需要考虑节点之间的连接形式，一旦网络结构发生变化或节点需要扩充，监控系统便需要调整，耗费大量的人力物力；(3)由于系统庞大，通讯的物理线路较为繁乱，在建设和维护阶段容易出现人为触碰等引起的通讯故障；(4)在出现通讯故障时，需要多方人员配合进行故障检测，不仅耗费人力和物力，且不利于故障排除；(5)运行和维护成本较高，需要很多运行维护人员进行大量繁杂的工作。

The conversion part,controller and connection cable are easy to be jammed and are the reliability control point in the aiming system.

瞄准系统中的转换器、瞄准控制器及传输电缆部分是最容易受干扰的环节，也是瞄准系统可靠性的控制点。

When the digitalsignal carries on the long distance transmission, the high frequencycomponent weaken increases along with the distance increases, theelectric cable median line also advances to the betweenelectromagnetic radiation along with the frequency intensifies, thusthe clipped wave transmitting range and the transmission quality,simultaneously in the channel often also exists separates the directcurrent electric capacity and the coupling transformer, they cannottransmit the direct component and have a bigger weaken to the lowfrequency component, therefore high frequency and low frequency arepartial regarding the common channel is limited.

当数字信号进行长距离传输时，高频分量的衰减随距离的增大而增大，电缆中线对之间的电磁辐射也随着频率的增高而加剧，从而限制信号的传输距离和传输质量，同时信道中往往还存在隔直流电容和耦合变压器，他们不能传输直流分量及对低频分量有较大的衰减，因此对于一般信道高频和低频部分均是受限的。

At 400 kilovolts, a standard value for long-distance transmission, an alternating current 30 metres (100 feet) from the ground has a fortieth of the loss of a similar cable at ground level.

在远距离传输的标准电压400千伏下，电缆离地30米（100英尺）时的电量损耗是同样电缆在地面时损耗的四十分之一。

The main products include 35KV and below XLPE, 10KV and below, overhead insulated cables, PVC insulated power cables,, cloth wiring, control cables, low smoke zero halogen cables, various types of flame-retardant and fire-resistant cables, with five categories of information transmission rope, nylon jacket lines and fiber-optic cables.

主要产品包括35KV及以下交联电缆、10KV及以下架空绝缘电缆、PVC绝缘电力电缆、裸线、布电线、控制电缆、低烟无卤电缆、各类阻燃和耐火电缆、信息传输用五类缆、尼龙护套线及光纤电缆等。

Ascend mainly supplies RF cable for TV/Radio transmitting system: SDY air dielectric cable, Mobile communication: Physical foaming coaxial cable and braided cable, and cable accessories like connector and jumper cable.

产品主要是用于广播电视领域传输和发射的SDY空气绝缘皱纹电缆系列，移动通信领域的RF物理发泡绝缘皱纹铜管外导体，编织外导体电缆。和各种电缆组件，例如跳线，接头。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。