【正文】 sharpest curve（小半徑曲線）.通常，這個設(shè)計(jì)速度被匝道的最限制的范圍，典型的是小半徑曲線。Safety improvements on freeways can also result in substantial savings in life and property(生命和財(cái)產(chǎn))because freeways carry 25 percent of the nation’s total ，還會節(jié)約大量的生命財(cái)產(chǎn)資源，因?yàn)楦咚俟妨髁空剂巳珖目偭髁康?5﹪。根據(jù)我校機(jī)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(jié)構(gòu)進(jìn)行系統(tǒng)設(shè)計(jì)。B/S結(jié)構(gòu)是隨Internet發(fā)展而來的。教師機(jī)端和學(xué)生機(jī)端都采用Window XP操作系統(tǒng)。每個機(jī)房都采用工作組模式組成局域網(wǎng)?？蛻舳瞬恍枰惭b軟件，只要有IE就可以運(yùn)行，故它在遠(yuǎn)程教育的考試系統(tǒng)中具有重要意義。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(hù)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。Selecting the design speed for a freeway is an important safety element because most geometric criteria(準(zhǔn)則，標(biāo)準(zhǔn))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(yīng)該作為高速公路主干道的設(shè)計(jì)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。Whatever design speed is selected, adequate transitions（轉(zhuǎn)變、過渡）from the freeway proper and at the ramp terminal（末端、末尾）or merge point（合流點(diǎn)）should be ，都應(yīng)該發(fā)展來自高速公路本身的和在匝道末尾或者合流點(diǎn)的合適的過渡。however, bined with shoulderwidth reductions, substandard sight distance, and other features, lanes may not provide the same safe 。然而減少幾公里長的路肩寬度，得不到同樣的的結(jié)果。更寬的標(biāo)記對老司機(jī)尤為有利。它包括兩個階段：；。該線彈性特性的限制，通常近似屈服應(yīng)力約200000MPA，以及相應(yīng)的范圍內(nèi)。屈服應(yīng)力隨著熱處理方法和壓制過程的工作量而變化，在同樣的條件下壓制次數(shù)多的薄板的屈服應(yīng)力高于較厚的鋼板。每種鋼材的最小屈服應(yīng)力是根據(jù)一系列的標(biāo)準(zhǔn)拉伸試驗(yàn)的結(jié)果確定的。通常認(rèn)為，單向拉伸所確定的屈服應(yīng)力對單向壓縮也正確。顯著影響疲勞強(qiáng)度的因素有荷載循環(huán)次數(shù)，荷載循環(huán)中的應(yīng)力幅以及局部應(yīng)力集中的大小。它也將有利于限制，如可行，接頭的地點(diǎn)，如在接近中性軸點(diǎn)，低應(yīng)力區(qū)。更嚴(yán)重的是快速不穩(wěn)定傳播的裂縫，因?yàn)閮Υ嬖阡摬闹械墓逃械膹椥詰?yīng)變能被釋放并用來使鋼材破壞。高集中應(yīng)力促進(jìn)裂縫開展，所以由不良的幾何形狀和荷載布置引起的應(yīng)力集中都很危險(xiǎn)，而且材料的裂紋和缺陷也非常重要。脆性破壞的危險(xiǎn)可以由選擇適合溫度下延性的鋼材類型來降低，或者通過由減小應(yīng)力集中和幾何約束的觀點(diǎn)來設(shè)計(jì)節(jié)點(diǎn)。 Pressures重力式傳播的穩(wěn)定條件設(shè)計(jì)必須考慮的不是最終或使用極限狀態(tài)，計(jì)算表明，必須有足夠的經(jīng)費(fèi)是對發(fā)生不良極限狀態(tài)有關(guān)一個特定類型的墻體了。上述給出的安全系數(shù)的運(yùn)用是設(shè)計(jì)的傳統(tǒng)方法，在1994年推薦的極限狀態(tài)方法要求對強(qiáng)度代表值運(yùn)用一個調(diào)節(jié)系數(shù)來獲得設(shè)計(jì)值，例如，%的墻高，承載能力計(jì)算時M應(yīng)該在2到3之間。也可能是地球的壓力造成的垂直分量的支持時，面對的不垂直，地面是傾斜的或在墻上摩擦是包括在內(nèi)。靜止土壓力是土體施加給不屈服豎直擋土表面的水平壓力。就任意土體材料來說，作用在常見擋土墻上的主動土壓力水平分量可由針對墻背豎直、墻后填土面基本水平的一般土壓力楔體理論很好地給出。然而，和試驗(yàn)結(jié)果相比則表明計(jì)算結(jié)果對負(fù)超載情況有點(diǎn)偏小，對正超載情況有點(diǎn)偏大，但是相差不超過10%。有些土由于缺少排水及他們自身的性質(zhì)，在任何情況下都可能變?yōu)榱黧w（不管形成的流體材料是大面積的還是僅僅靠墻的