【正文】 road gauge(5 feet wide)tracks, abreakofgauge, and this would have to be dualgauge track network has been proposed, as those are used in some areas of Australia, whose rail network is split into different cheaper solution is variable gauge axles or bogie exchange, as used at several places in the world （4英尺，），而俄羅斯的鐵路采用俄羅斯寬軌距（5英尺寬），需要說明的是這樣就形成了具有不同軌距的鐵路。即使是關(guān)閉的路面和管線的維護也將受到冬季氣候的影響。C).Maintenance of any exposed roadway would be difficult and closures maintenance of enclosed roadways and pipelines could also be affected by winter breakup after each winter is violent and would destroy normal bridge shaped massive piers along the ocean floor would be needed to keep the bridge Confederation Bridge between Prince Edward Island and New Brunswick addresses similar concerns on a much smaller ,它受到了漫長黑暗的冬季和極限天氣的影響(冬天的平均溫度低至20176。特別是他們完全能夠從設(shè)計、裝配到現(xiàn)場安裝整個過程中給與承包商支持。Sources of MaterialsIn accordance with the schedule of submissions, the Specialist contractor shall provide for the Project Manager’s review a list of the proposed materials and their shall also provide documents from the sources as evidence of their ability to carry out the tasksexpected of them, and written confirmation that the materials they are supplying are suitable and appropriate for their intended use and will satisfy this Contract Specialist contractor shall obtain the total quantity of each material from the same Specialist contractor shall obtain materials from established and reputablemanufacturers, particularly those who are prepared to assist him with the design process, through to the fabrication and final installation on 根據(jù)遞交計劃表，專業(yè)承包商應(yīng)把含有提議使用材料的名稱及其來源信息的列表遞交項目經(jīng)理審閱。項目經(jīng)理可以拒絕沒有達到驗收標(biāo)準(zhǔn)的工藝并要求專業(yè)承包商將其去除同時按照驗收標(biāo)準(zhǔn)重新安裝。項目經(jīng)理應(yīng)對現(xiàn)場質(zhì)量控制樣件進行審查和評論。因此，有少強調(diào)體系結(jié)構(gòu)與實施之間的區(qū)別。大多數(shù)消費者項將被替換，不會升級。在oppsite極端，基礎(chǔ)建設(shè)的設(shè)備例如電話交換機在30年的日程表貶值。所以，為把自己培養(yǎng)成為復(fù)合型、有發(fā)展后勁的高技能人才，大學(xué)生必須把握機械工程專業(yè)知識，培養(yǎng)專業(yè)英語的學(xué)習(xí)興趣，積累專業(yè)英語學(xué)習(xí)方法和基礎(chǔ)知識，加強英文原始專業(yè)文獻的閱讀，擴大知識面，迅速而切實地提高自己的專業(yè)英語的應(yīng)用能力，為將來更好地適應(yīng)高素質(zhì)工作崗位和進一步發(fā)展的需要打下良好的基礎(chǔ)。必須要用正確的態(tài)度對待英語學(xué)習(xí)，用科學(xué)的方法指導(dǎo)學(xué)習(xí)。3培養(yǎng)濃厚興趣培養(yǎng)對英語的興趣至關(guān)重要。在專業(yè)英語的學(xué)習(xí)過程中，學(xué)生既要鞏固基礎(chǔ)詞匯，也要學(xué)習(xí)專業(yè)詞匯，更要注重基礎(chǔ)詞匯的習(xí)慣用法、含義和在專業(yè)英語中的特殊用法、含義，同時，學(xué)生還需要在識記專業(yè)詞匯的同時，掌握一定量的詞根、詞綴［7］。缺乏專業(yè)知識，翻譯專業(yè)文獻就沒有了根基，成了無本之末。2專業(yè)基礎(chǔ)知識不扎實專業(yè)基礎(chǔ)不扎實、專業(yè)知識的缺乏是專業(yè)英語學(xué)習(xí)和翻譯的一大障礙。s health and even the other hand,human activities have been emissioning a large amount of greenhouse gases, including carbon dioxide, methane, nitrogen oxide and so on, which have been causing a series of global problems,such as extreme climate occured frequently ,the ecological enviroment deterioratedand global political generally, air pollution bees worse and worse, which are threatening the human survival and development,In order to protect the environment, the government must take even more effective , the government should render people fully realize the importance of environmental protection through , the government should encourage the people to use the environment frienfly , those who destroy the environment intentionally should be severely should let them know that destroying environment means destroying mankind themselves.第二篇：專業(yè)英語我國經(jīng)濟和科學(xué)技術(shù)正在高速發(fā)展，隨著我國機械行業(yè)實力的不斷提升，中國正在加速產(chǎn)品與設(shè)備的更新與改造，我國與其他國家在各技術(shù)領(lǐng)域也正在實現(xiàn)進一步的合作，許多企業(yè)引進了很多進口設(shè)備，大量資料是英文原版的。因此，學(xué)生將來在工作崗位上能否讀懂這些資料就是擺在面前的一個嚴(yán)峻的問題，特別是在生產(chǎn)實際中碰到現(xiàn)場實際問題的時候，很可能需要查閱原版英文資料或與相關(guān)專家用英語交流專業(yè)技術(shù)來謀取解決途徑，所以機械工程專業(yè)英語的掌握就變得越來越重要。只有既懂外語又懂專