national mobile number 中文意思是什麼
national mobile number
解釋
國內移動號碼-
First, this paper looks for the national experiences that organizing city traffic in the rodeway system, in conditions of the mobile and no - mobile number being big. then analyzing the questions and reasons in middle - scale - city roadway system, on the base of studying characters of use - land and residents journey, transportation tools and relations of the transportation and economy development, put forward some proposes in roadway system on the base of middle - scale - city characters of basic construction and solving the new problems of city traffic. through analyzing the relations of middle - scale - city roadway system, city land - use and land - shape, put forward some development antidote. in the circumstance of road facilities being lack, improve the level of traffic management of city roadway system, improve traffic environment of city roadway system. put forward some revised proposes on road - net norm of middle - scale - city road system in our country ; consider the plan of isolating mobile form no - mobile in the organization of roadway system ; construct revaluating system of city roadway system. at last through studying a typical case of yuncheng, put forward some solutions and measures ; through using evaluating system, evaluate, contrasts and analyses the present conditions in city roadway system and planning program
本文首先尋求國外機動車和非機動車擁有量都較大的情況下，為組織好城市交通在道路系統方面所取得的可供我國借鑒的經驗，然後在對我國中等城市用地特徵、居民出行特徵、交通工具、交通與經濟發展的關系等進行分析的基礎上，剖析中等城市道路系統現狀存在的問題及其形成原因，以及對今後城市交通將要出現的新問題，提出以中等城市的交通結構特點為基礎的機、非分流道路系統的建議；通過分析中等城市道路系統與城市土地開發、城市用地形狀等之間的關系，並相應其提出發展的一般對策，在道路設施不足的情況下，加強城市道路交通系統的管理，提高城市道路交通環境，對我國中等城市道路系統在道路網指標上提出修正意見，對道路系統組織機、非分流進行思考；並建立了城市道路系統評價指標體系；最後以運城市做為實例分析，具體提出近期處理的對策與措施，並運用評價體系對城市道路系統現狀和規劃方案進行評價對比分析。 -
Telephone communication is the most widely employed ways of communication in the world. telephone communication is becoming more and more important as the national economic reform deepens. dynamic channel borrowing assignment mode is an effective method in communication channel expansion. although it has been put into practical use in satellite communication and mobile communication, no one has attempted to apply it to telephone line expansion. in this paper the author expands the telephone line via dynamic channel borrowing assignment mode, ascertains the expansion scheme, designs the circuit of hardware in telephone line expansion device, draws up software programme, analyses the call lose after using the expansion device theoretically and then experiments to verify it. eight subscribers can share one or two telephone lines with the help of the telephone line expansion device with each phone a sole number. this makes it possible for subscribers to use any free telephone line. thus increasing the number of subscriber and utilization ration of telephone line. in addition. this project makes it possible for expansion subscribers to communicate directly while not to make use of outer line. which further decreased the system call lose
多通道共用是通信通道擴容的一種有效的方法，已在衛星通信、移動通信中得到應用，但尚未應用到電話線路擴容中。本文利用多通道共用原理對電話線路進行擴容，確定了多通道共用方式電話線路擴容的設計研究方案，研究設計了電話線路擴容器的硬體電路，編制了電話線路擴容器的軟體，並對使用電話線路擴容器后的呼損進行了理論分析及試驗研究。本文研究設計的多通道共用方式電話線路擴容器可以使8個用戶共用1 2對電話線路，每部用戶話機都具有獨立的電話號碼，可以利用任一空閑的電話線路，故能夠增加電話用戶，提高電話線路的利用率。
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