wwan中文什么意思

永远支持降雪

例句与用法

1. An efficient handoff decision algorithm for vertical handoff between wwan and wlan
   Wwan和wlan间的一种高效的垂直切换触发算法
2. In this paper , i present rbtcp , a reliable transport protocol that addresses rate control and reliability over commercial wwan networks such as cdpd
   为了叙述方便我将此改进后的tcp称为rbtcp （ ratebasedtcp ） 。
3. Being resipansible for technology guality of this unit , i have arganized and completed or then 10 great consultative projects in meteluvgical industing including feasible research repart and preliminary design of dan yang ring - type sintering plant loaned from world bank . designed no . 6 semi - contiuars rolling mill line of shagang group ; nangang group steel making plant water treatinent system , feasible research report and preliminarg design of nangang group no . 3 continuous casting machiue and hebei wwan iron making co . 24m2 rinn - tgpe sintering plant , as chief - disigner , none argamizing working drawing disign far it
   作为本单位技术质量负责人，近年来组织了完成了10余项较大规模的冶多工程咨询任务，其中包括世行贷款的丹阳环烧工程可研和初步设计；担负港沙钢集团六轧车间半连轧生产线设计；南钢集团炼钢厂水处理系统完善；南钢集团炼钢厂矩形柜连铸可研及初步设计；河北武安市铁业公司24m ^ 2环烧工程担任总设计师，完成了初步设计，正组织开展施工图设计。
4. Wireless wide - area networks ( wwans ) are charactered by very low and variable bandwidths , very high and variable delays , significant non - congestion related loss , asymmetric uplink and downlink channels , and occasional blackouts . additionally , the majority of the latency in a wwan connection is incurred over the wireless link
   无线广域网（ wwans ）由于以下特征而有别于有线广域网（如internet ） ：较低并且易变的带宽，很高且易变的延迟，与拥塞无关的数据丢失，非对称的上行和下行信道，以及偶尔的昏眠状态，此外，在无线广域网上的大部分的延迟发生在无线连接部分。
5. It discusses the characteristic of each level in osi model from the point of wwan first , then analyses clearly the primary technologies used in gprs / sms / csd and a topology structure model of the wwan based on gprs / sms / csd is presented . it also deeply discusses the integrate technology of gprs / sms / csd in a example of fujian environmental automatization system , at the same time a network model of wwan based on gprs / sms / csd is brought forward . last , there are the module programmers of the system
   本文从计算机开放系统互联参考模型入手，按osi参考模型7层协议结构顺序，逐步介绍了在无线广域网环境中osi层次模型的特点，在此基础上，详细分析了gprs / gsm技术和短信息技术，并给出一个基于gprs /短信息/ csd的无线广域网的网络拓扑结构；以福建省环境自动监测监控系统的分析和设计为例，探讨了现阶段gprs技术和短信息技术、电路交换技术在无线计算机网络系统中的集成问题，并给出了一个基于gprs /短信息/ csd的无线广域网网络模型，最后是系统的模块程序设计。