成人小说亚洲一区二区三区,亚洲国产精品一区二区三区,国产精品成人精品久久久,久久综合一区二区三区,精品无码av一区二区,国产一级a毛一级a看免费视频,欧洲uv免费在线区一二区,亚洲国产欧美中日韩成人综合视频,国产熟女一区二区三区五月婷小说,亚洲一区波多野结衣在线

立即打開
美國磁懸浮列車項目差錢差技術(shù)

美國磁懸浮列車項目差錢差技術(shù)

Michael Fitzpatrick 2014-02-12
日本即將推出超高速磁懸浮列車服務(wù),還打算向國外出售這種高新技術(shù)。美國有興趣,但光靠興趣不夠,這項工程還需要技術(shù)和大量的資金支持。美國在這兩方面都嚴(yán)重缺乏。

????如果沒有擁擠的日本沿海地區(qū)那種令人難以置信的人口密度,以及這種密度蘊含的收入前景,這類項目往往需要政府補貼。日本中央鐵路公司最近宣布將在沒有納稅人幫助的情況下,建造東京至大阪的磁懸浮線路。這家公司將承擔(dān)第一站的建設(shè)成本,建成后,磁懸浮列車的時速將達(dá)到311英里(約合500公里),從東京到名古屋只需40分鐘。分析師表示,這條穿越地球上人口最稠密地區(qū)的線路將會有巨大的需求和投資回報,盡管該項目需要經(jīng)歷相當(dāng)長的醞釀期——東京至大阪的“中央線”要到2045年才能全線開通。

????“我們預(yù)計,中央線磁懸浮項目的總成本將高達(dá)9.5萬億日元(約合930億美元)。至2050年,這條線路很可能將產(chǎn)生不高于這個十年開始時的經(jīng)常性盈利,”麥格理集團( Macquarie Group)常駐東京的運輸分析師尼古拉斯?坎寧安說。

????盡管東北磁懸浮公司盡了最大努力,但如果沒有日本人或財大氣粗的投資者的鼎力支持,他們還將面臨艱難險阻。東北磁懸浮公司聲稱,到目前為止,它已經(jīng)從美國私人投資者手中募集了4,000萬美元資金??沙掷m(xù)交通雜志EVworld.com在一篇評論中表示,歸根結(jié)底,這個項目能否啟動將取決于能夠募集多少資金?!懊绹欠駪?yīng)該進(jìn)行如此規(guī)模的投資?從表面看,答案或許是否定的,至少在波士頓至華盛頓特區(qū)走廊擁有相當(dāng)于日本或中國那樣的人口密度(唯如此,這種成本開支才是合理的)之前是這樣,”這篇評論這樣寫道?!拔覀冞€是先讓美國鐵路公司的阿西樂特快列車充分發(fā)揮其時速150英里的潛力,而不是目前的80英里時速。然后再考慮像高鐵這種更符合21世紀(jì)潮流的交通方式吧?!保ㄘ敻恢形木W(wǎng))

????譯者:葉寒

????Without the mind-boggling population density found in the crowded Japanese coasts and the revenues that promises, projects like these often require government subsidies. JR Central recently announced that it would be building its Tokyo to Osaka maglev service without taxpayers' help. JR Central is privately funding the construction cost of the first leg, which will operate at 311 miles per hour to connect Tokyo and Nagoya in just 40 minutes. Passing along the most densely populated crust of Earth ever traversed by man, there will be massive demand and returns on investment, say analysts, despite the project's long gestation period. The Osaka Tokyo "Chuo Line" won't open till 2045.

????"The Chuo Linear maglev project, which we estimate at Y9.5 trillion total cost (around $93 billion) will likely result in a 2050 recurring profit no higher than the start of this decade," says Nicholas Cunningham, a Tokyo-based transport analyst at Macquarie Group.

????Despite their best efforts, TNEM has a steep hill to climb without serious backing from the Japanese or deep-pocketed investors. So far, TNEM says it has raised $40 million from private U.S. investors. It will all come down to the numbers, says an editorial in sustainable transportation magazine EVworld.com. "Should this nation [the U.S.] make this level of investment? On the face of it, the answer is probably no, at least not until those mega-regions like the Boston-D.C. corridor, have population densities comparable to Japan or China, which could justify the expense," says the editorial. "First, we need to get Amtrak's Acela running at its full potential of 150 mph, instead of it current average of 80 mph. Then let's consider something more 21st century like high-speed rail."

掃描二維碼下載財富APP
激情偷乱人伦视频在线观看| 国产福利在线永久视频| 亚洲va中文字幕无码久久不卡| 亚洲国产成人精品激情在线| 亚洲AV无码一区二区三区天堂古代| 1024手机在线精品观看| 丰满熟女高潮毛茸茸欧洲视频| 中文字幕一区二区三区久久| 国产大片91精品免费观看| 亚洲无人区码一码二码三码四码| 2016年毛片无码免费| 久久天天躁狠狠躁夜夜网站| 777久久精品一区二区三区无码| 久久99亚洲综合精品首页| 国内揄拍国内精品少妇| 日产亚洲一区二区三区| 久久精品无码中文字幕老司机| 9277在线视频免费观看| 精品日本一区二区三区在线观看| 国产成人影院一区二区三区| 99久久精品免费看国产| 亚洲av无码一区二区三区观看| 99久久精品美女高潮喷水十八| 扒开老女人毛茸茸的黑森林| 浮力影院欧美三级日本三级| 国产精品麻豆成人AV电影| 二区三区欧美在线免费观看| 乱人伦人妻精品一区二区| 亚洲精品国模久久久久久| 久久精品国产99国产精| AV精品一区二区三区| 亚洲国产欧美日韩一线| 2021国产v亚洲v天堂无码| 国产欧美日韩综合亚洲| 中文字幕乱码人妻无码久久免费| 久青草久青草视频在线观看| 国产VA免费精品观看精品| 把腿张开我要放按摩器| 日韩免费无码成人久久久久久片| 亚亚洲国产精品va在线观看香蕉| 亚洲无码在线在线|