【摘要】2020年MBA考試越來(lái)越近了，在備考的最后關(guān)頭千萬(wàn)不要亂了陣腳哦，越是臨近考試越要靜下心來(lái)培養(yǎng)一種良好的考場(chǎng)心態(tài)，把每一天都當(dāng)考試當(dāng)天，每一道題都當(dāng)考試題，盡快鍛煉自己不怯考場(chǎng)的能力。以下內(nèi)容是2020年MBA考試考前英語(yǔ)外刊閱讀（八）。
不僅為大家及時(shí)帶來(lái)各種考試資訊還為大家提供2020年MBA考試動(dòng)態(tài) 免費(fèi)預(yù)約短信提醒哦。
Boat building is a long-winded and tedious business, even when what is going down the slipway is a small craft made from modern materials such as fibreglass, rather than something nailed together out of planks of wood. Construct a mould. Build up layers of resin and glass fibre inside that mould. Extract the completed structure and finish it. All told, it can take months.
That, though, may soon change. For researchers at the University of Maine are now in the process of testing an 8-metre (25-foot) patrol boat that took just 72 hours to make from scratch. Their trick was to build the vessel using a giant 3d printer. Since they appeared in commercial form in the 1990s, 3d printers have generally been employed in factories to make small things like prototype models, components of jet-engines and dental crowns.
To print the patrol boat, part of an American army project, the team in Maine linked up with Oak Ridge National Laboratory, in Tennessee, which helped develop the printing process, and Ingersoll Machine Tools, in Illinois, which built the printer itself. The university reckons that for boat building, a common trade in the state, large 3d printers of this sort will dramatically cut the cost and time required to produce new vessels.
文本選自：The Economist(經(jīng)濟(jì)學(xué)人)
板塊：Science and technology
原文標(biāo)題：Giant 3D printers for making boats, bridges, buildings and rockets
參考翻譯
造船是一項(xiàng)冗長(zhǎng)乏味的工作，即使是用現(xiàn)代材料如玻璃纖維制成的小船，而不是用木板釘在一起的木船。構(gòu)造一個(gè)模具，在模具內(nèi)部堆積樹(shù)脂和玻璃纖維層，提取完成的結(jié)構(gòu)并完成它?？偟膩?lái)說(shuō)，這可能需要幾個(gè)月的時(shí)間。
不過(guò)，這種情況可能很快就會(huì)改變。緬因大學(xué)的研究人員目前正在測(cè)試一艘8米(25英尺)長(zhǎng)的巡邏艇，這艘巡邏艇從無(wú)到有只用了72個(gè)小時(shí)。他們的訣竅是用一個(gè)巨大的3D打印機(jī)來(lái)建造這艘船。自20世紀(jì)90年代3D打印機(jī)以商業(yè)形式出現(xiàn)以來(lái)，它通常被工廠用來(lái)制造小物件，比如原型模型、噴氣發(fā)動(dòng)機(jī)組件和牙冠。
為了打印巡邏艇，這是美軍項(xiàng)目的一部分，緬因州的團(tuán)隊(duì)與田納西州的橡樹(shù)嶺國(guó)家實(shí)驗(yàn)室進(jìn)行了合作。橡樹(shù)嶺國(guó)家實(shí)驗(yàn)室?guī)椭_(kāi)發(fā)打印過(guò)程，伊利諾斯州的英格索爾機(jī)床公司自己制造打印機(jī)。該大學(xué)認(rèn)為，對(duì)于造船這一該州常見(jiàn)的行業(yè)而言，這種大型3D打印機(jī)將大幅削減制造新船的成本和時(shí)間。
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