支幹線 的英文怎麼說
中文拼音 [zhīgànxiàn]
支幹線
英文
service main-
This air line operates five main lines and twenty branch lines
這家航空公司經營五條主幹線和二十條支線。This airline operates five main lines and dozens of branch lines
這家航空公司經營五條主幹線和十幾條支線。This structure connects the hamburg tree port area with a western motorway bypass.
這座橋連接了漢堡自由港區與西部南速幹道的支線。From the basic attributes of circulation system, building compages and arrangement, space frame and sightline conforming, landscape controlling, i build the evaluating model of the dendriform index system. chapter 5 of the dissertation discuss the residential quarter project in chongqing to prove the maneuverability of the evaluating model
第四章是論文研究的重點，結合設計方法的總結，從交通系統與流線組織，建築群體組合與布局，空間構架和視線整合，景觀構成四個方向為主幹分支，建立具有較強的可操作性的樹狀指標體系評價模型。Because the traffic volume in beijing city incessantly rises in recent years, and will continue to rise in future, in order to solve the travel difficulty and to reduce trip time, many loop roads and expressways are built. it is convenient for long - distance traffic, but it is a disadvantage to block - to - block traffic. due to expressway ' s separation from arterial roads, considerable traffic bypass into the grade - crossing intersection under the flyover, and lead to the traffic jam
由於北京的交通量在近幾年持續增長，並在今後一段期繼續保持增長態勢，為了解決行車難，旅行時間長的問題，北京在修建了大量的環路和快速路，分隔了次幹道和支路與主路的便捷聯系，使得很多其他繞行交通走行在跨線橋下形成的環路輔道與主要幹道相交的平面交叉口，也使得此類交叉口交通壓力非常大，從交通構成來看，進口轉彎交通量比例也很大。Considering that the characteristics of our country ' s highway tunnels are always of long spans, tabular and of various geometry, by means of thorough analysis of the different problems existed in the design of support structures of the tunnels at present, this paper pays special attention to the two key problems, optimization method of form selection of structural section of the tunnel as well as the stability and bearing capacity of the support structures, in the design of the long and large tunnel on high - class highway, introduces the simplified complex - form optimum method in the structure optimization theory, discusses the optimum design model of lining section of highway tunnel with satisfying demands in building clearance, ventilation and load conditions, puts forward an optimization method of form selection of three different kinds of lining sectional forms ( i. e. single - center circle, three - center tabular circle and three - center sharp circle ), establishes a complete set of systematic optimum design the ory and method of long and large tunnel on high - class highway, develops the corresponding computer software used on the planned xuefeng mountain highway tunnel on shaoyang to huaihua expressway in hunan province for optimization of form selections of the structural sections, and obtains a series of relatively reasonable structural design parameters
本文針對我國公路隧道多為大跨度、扁平、幾何形狀呈多樣化的特點，通過深入分析目前隧道支護結構設計中存在的各種問題，抓住高等級公路長大隧道設計中隧道結構斷面的優化選型及隧道支護結構的穩定性與承載能力兩個核心問題，引入結構優化理論中的簡易復合形優化方法，深入探討了滿足建築限界、通風條件、受力狀態約束等條件下公路隧道襯砌斷面優化設計模型，提出了三種襯砌斷面形狀（單心圓、坦三心圓和尖三心圓）的優化選型方法，建立起一套完善的高等級公路長大隧道的系統優化設計理論與方法，並開發出相應的計算機程序，用於擬建的上海至瑞麗國道主幹線湖南省邵陽至懷化高速公路雪峰山長大高速公路隧道的結構斷面優化選型，得出了一系列較為合理的支護結構設計參數。The ministry of communications has been proposed a " three main and one support " ( the main framework of highway, the main channel of water transport, the main hub of harbor station, and the supporting system of modern traffic ) long - term plan of construction of communications, then carrying out nationwide distribution plan of national arterial highway system and highway main hub system
交通部提出了「三主一支持」的交通建設長遠規劃，並進行了全國國道主幹線系統和公路主樞紐系統的布局規劃。目前，各省交通廳在國家級公路主樞紐系統的總體框架下，分別進行了各省的二級公路樞紐系統的規劃。Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research
接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。This paper studies the load - balancing algorithm and quality of service control mechanism in a 320gb s switch system, which incorporates four packet - level parallel switch planes. eight priorities for both unicast and multicast traffic are implemented, and the highest priority with strict qos guarantee is designed for real - time traffic
一方面，近年來光傳輸網路的飛速發展使得骨幹網的瓶頸轉移到了負責交換和路由功能的核心路由器，即要求核心路由器支持更高線速，如10gb s 40gb s等。The company operates over 70 international shipping routes, connecting more than 120 harbors in the world and forming the east - to - west main lines centered on china, the u. s. and europe, the secondary lines supported by japan, australia and south east asia, and branch lines in china, south east asia and europe
擁有全球運輸主幹線70多條，掛靠世界重要港口120多個，形成以中國、美國、歐洲三大板塊為核心的東西主幹航線體系，以日本、澳洲、東南亞為支撐的次干航線，以及中國、東南亞、歐洲三大區域內的支線網路。The solution of an undervoltage problem in a bar takes place after the solution of all overcurrent problems in thelines of a feeder
在解決一個饋線線路（設備）所有主幹路上的過流問題后，接著要解決掉出現其後的支路上的低電壓問題？There are some differences in traffic capacity and function of each road line in the urban traffic network, for that reason the urban traffic network is separated into main trunks and branch trunks
本文的主要研究內容如下: 1 .針對區域交通路網中各線路的通行能力和功能的不同，將路網分為主幹線和支線。分享友人