英語四級聽力訓練: this is the Technology Report
From Learning English, this is the Technology Report.
European Airplane maker Airbus plans to have new passenger airplanes by the end of the year. The new models will use some of the most modern technologies, including metal parts made in a 3-D printer.
The high price of airline travel is largely the result of fuel cost. So airplane manufacturers want to build lighter planes with more fuel efficient engines. They also want their planes to to have more seats.
Modern airplanes like the large Boeing 787 Dreamliner are made from a mixture of plastic and carbon materials. The current Airbus A350 plane uses plastic parts created in a 3-D printer. But the model XWB plane will be the first with parts printed in the hard metal titanium. Peter Sander of Airbus says company technicians learned to print very complex shapes.
Normally this is a part of the fuel system, its two pipes in one, and its normally welded out of 10 parts. So in this case, with 3-D printing we have the chance to integrate the bracket of the pipe and two pipes at once and print it in one shot, Sander said.
3-D printing also helps when parts are no longer available. Mr. Sander tells of a time Airbus engineers needed an extra part for airplane seats that was no longer made, he says it was easy to print perfect copies.
So we did a redesign in a week and printing in a week. So the redesign itself cost two hours, we took the manual drawing, redesigned it and put it on the desk one week later to the spare part guys, Sander said.
-
2023年6月英語四級考試聽力集訓試題
現如今,我們經常跟試題打交道,試題可以幫助參考者清楚地認識自己的知識掌握程度。你知道什麼樣的試題才是好試題嗎?以下是小編幫大家整理的2023年6月英語四級考試聽力集訓試題,希望能夠幫助到大家。SectionA1.M:TheDeanjustannouncedthatDr.Holden'sgoingI'...
-
2015年大學英語四級考試題庫精編
PartIVTranslation.(30minutes)Directions:Forthispart,youareallowed30minutestotranslateapassagefromChineseintoEnglish.YoushouldwriteyouransweronAnswerSheet2.67、Directions:Forthispart,youareallowed30minutestotranslateapassagefromChineseintoEn...
-
2016年12月英語四級閲讀強化練習題
四級閲讀是很多人都頭疼的一個部分,但是又是最容易漲分的.一個部分,只要考生多做練習找到其中的規律,就可以順利通過考試。以下是yjbys網小編整理的關於英語四級閲讀強化練習題,供大家備考。Inacountrythatdefinesitselfbyideals,notbysharedblood,whoshouldbeallo...
-
英語四級圖表類作文(通用19篇)
在學習、工作乃至生活中,大家總免不了要接觸或使用作文吧,寫作文可以鍛鍊我們的`獨處習慣,讓自己的心靜下來,思考自己未來的方向.還是對作文一籌莫展嗎?以下是小編為大家整理的英語四級圖表類作文,希望對大家有所幫助.英語四級圖表類作文篇1Oneglanceatapyrami...
相關文章
- 《Right Diet To Keep Eyes Healthy》英語閲讀訓練
- 《The Prevalence of Western Holidays》英語四級作文
- Is a Test of Spoken English Necessary英語四級作文
- 英語閲讀:Heat Is on These Countries for the Heat大綱
- 英語四級作文The Importance of Physical Exercise
- 託福英語聽力練習:The History of the Calendar
- The Limitation of The Violence Shot 暴力鏡頭的限制英語作文
- The relationship between theory and practice大學英語作文
- Ought Parents to Give Children Pocket英語作文
- The Unforgettable School Trip英語作文