通信的

The system is prone to be expanded and the stability of it is advanced.

结果表明，此系统设计解决了8 位单片机多机通信的问题，实现了客户机与服户机间的通信，以及客户机与客户机间的通信，易于扩展且稳定性好。

A wireless system for use in a low power data communications in a sub-millimeter wave zone includes at least one wireless communications device including a directional antenna whose cross-polarization discrimination is not less than 24 dB, wherein the wireless system uses a plurality of planes of polarization selectively.

一种用于亚毫米波带中的低功率数据通信的无线系统包括至少一个无线通信装置，该无线通信装置包括交叉极化鉴别率不小于24dB的定向天线，其中，该无线系统有选择性地使用多个极化面。

The present paper uses the direct sequence spread spectrum technology, key to short-wave communication and direct sequence spread spectrum correspondence characteristic as well as union advantage, wide frequency code production, the direct sequence spread spectrum communications system technology and the principle, the wide frequency synchronization technology, the RAKE receive technology has conducted the research and the analysis.

本论文采用直接序列扩频技术，重点对短波通信与直接序列扩频通信的特点以及结合的优点，扩频码的产生，直接序列扩频通信系统的技术与原理，扩频同步技术，RAKE接收技术进行了研究与分析。

The other is based on carefully arranged computation process to reduce communication of whole overlapped domain in one line of grid points.

之后，在仔细对其中的计算过程进行分析的基础上，给出一种只需要一条网格线上分量通信的实现算法，大大减少了通信量，且通信不随重叠度的增加而增加。

This protocol solved the cell interleaving problem and resource allocation problem in ATM multicast environment.

我们从群组通信的体系结构入手，分析了现有的多点通信路由协议和路由算法，并指出了在ATM组播通信环境下所特有的技术问题。

More specifically, expenses incurred by a communications terminal that communicates with a first mobile radiotelephone system and a second mobile radiotelephone system are controlled by storing first and second critical values which characterize a tariff structure of the respective first and second mobile radiotelephone communication systems.

具体地说，与一个第一移动无线电话系统和一个第二移动无线电话系统通信的通信终端承担的费用受所存储的表征第一和第二移动无线电话通信系统各自资费制的相应第一和第二临界值控制。

Job experts who communicate by letter throw this feasible whole world more distant with sight having faced fourth communicating by letter on behalf of displacement, to look forward to on behalf of moving an insolvable problem coming to resolve 3 G communication system by fourth, the nothing crack realizing the wireless network of commerce , local area network , blue-tooth , radio and television, satcom ultimately is link up and mutually compatible, realize "anybody fond dream switching in a network with any form in any place" really.

这使得全世界通信业的专家们将目光更远地投向了第四代移动通信，以期通过第四代移动通信系统来解决3G无法解决的问题，最终实现商业无线网络、局域网、蓝牙、广播、电视卫星通信的无缝衔接并相互兼容，真正实现&任何人在任何地点以任何形式接入网络&的梦想。

As a special mobile system, the trunked system is not entirely the same as the cellular mobile system even if it inherits many advantages of the cellular communications.

作为专用移动通信系统的数字集群系统，秉承了数字通信的优点，又有别于民用的蜂窝移动移动通信。

This peper outlines the requirements of the railway emergency telecommunication at war and gives information about the features of the new-generation RETS.

针对铁路应急通信的现状及存在问题，提出了战时铁路应急通信的要求，并介绍了新一代铁路应急通信系统设备的特点。

Communication between room and building has been accomplished.

本文完成了通信串口的扩展和PC机与单片机串行通信的设计，实现了房间层和栋层间的通信。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。