【正文】 第一篇：專業(yè)英語翻譯系統(tǒng)設計1．1 系統(tǒng)的運行環(huán)境智能Ｃ語言考試系統(tǒng)的運行環(huán)境是根據我校教育技術中心的機房現(xiàn)有的硬件環(huán)境（每個機房有五十臺左右的學生機和一臺教師機）規(guī)劃的。教師機端和學生機端都采用Window XP操作系統(tǒng)。每個機房都采用工作組模式組成局域網。開發(fā)工具采用VB ，數(shù)據庫采用Access 2000。1．2系統(tǒng)運行模式的選擇當前流行B/S和C/S這兩種模式結構。B/S結構是隨Internet發(fā)展而來的?？蛻舳瞬恍枰惭b軟件，只要有IE就可以運行，故它在遠程教育的考試系統(tǒng)中具有重要意義。但是它數(shù)據安全性較低，對服務器要求高，數(shù)據傳輸速度也慢。而C /S結構是傳統(tǒng)的結構，技術非常成熟，安全性較高，網絡通信量低，響應速度快。根據我校機房軟硬件條件及Ｃ語言智能考試系統(tǒng)自身的需要，選擇C/S結構進行系統(tǒng)設計。1System design Run environment of systemThe running environment of intelligent C language examination system, which is according to our schoolstaff of educational technology center puter room of existing hardware environment(There are around fifty students machine terminal and a teacher machine terminal in the machine room)to be planned in present teacher machine terminal and students machine terminal adopt Window XP operating mode of LAN is used in each 6 is widely used in development tools, The database uses Access The choice of system operating modeB/S and C/S structure in the two sort of modes is very popular in the , the client does need not to install the software, so it has important significance in the examination system of the distance the data security is low, and high demands on the server, which the data transmission speed is C / S structure is a traditional structure, which has proven technique, high security, low network traffic and fast response to our school room hardware and software conditions and the C language intelligent examination system ,which is to meet their own needs when selecting C / S structure of the system design.第二篇：專業(yè)英語翻譯Freeways,especially those built to Interstate standardsare the safest of the various classes of , control of access, which limits vehicle conflicts(車輛沖突), isa primary factor in relatively low accident, injury,and fatality rates(事故,死亡率), other design features, such as wide medians and shoulders roadsides clear of obstructions, and the extensive use of protective barriers(護欄), are key factors as ，是獲得較低的交通事故率和傷亡率的一個主 要因素。另外，其他的設計特性，如較寬的中央分隔帶和較寬的路肩、路邊無障礙物、大量采用防護欄等也是關鍵要素。The higher design speeds(設計速度)used for freeways result in long sight distances(視距)due to long radiushorizontal curves and long vertical curves, and otherdesirable design features that create a safe ， most of the nation’s freeways enjoy thisrelatively high level of design and safety, there are many opportunities for further ，但還是有很多地方需要進一步增強。Safety improvements on freeways can also result in substantial savings in life and property(生命和財產)because freeways carry 25 percent of the nation’s total ，還會節(jié)約大量的生命財產資源，因為高速公路流量占了全國的總流量的25﹪。Selecting the design speed for a freeway is an important safety element because most geometric criteria(準則，標準)related to or depend on In general, 110 kilometers per hour(km/h)should be the design speed for the mainline of a freeway , but it may need to be lower in areas of severe terrain or heavy ，110千米每小時應該作為高速公路主干道的設計速度，但是在崎嶇的地區(qū)或者施工難度大的地區(qū)可能需要降低。For reconstruction, rehabilitation, and resurfacing(3R)projects, the design speed should not be less than the original design speed or the current legal speed limit of that highway ，恢復鋪新路面工程，設計速度不應該低于平時設計速度或者那塊交通干線區(qū)域的目前規(guī)定的速度限制。Design speeds for interchange ramps（立交匝道）depend on the type of ramp selected, for example , loop，diamond, or direct, and the lowvolume（低交通量）, running speed（行駛速度）of the intersecting ，例如，環(huán)形、菱形、直線型以及低交通量，相交交通干線的運行速度。Usually, the design speed is established by the most restrictive element of the ramp, typically, the sharpest curve（小半徑曲線）.通常，這個設計速度被匝道的最限制的范圍，典型