英语四级听力训练: this is the Technology Report
来源:才华咖 本文已影响5.22K人
来源:才华咖 本文已影响5.22K人
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.
英语四级作文The Importance of Physical Exercise
Trying To Help Others英语作文
Is a Test of Spoken English Necessary英语四级作文
《The Prevalence of Western Holidays》英语四级作文
英语作文阅读:Bad News for the Highly Intelligent
Efforts Urged to Improve Womens Reproductive Health英语阅读
Health in developing countries大学六级英语写作范文
英语阅读:Heat Is on These Countries for the Heat大纲
Think Positive Thoughts Every Day英语作文
英语阅读:Heat Is on These Countries for the Heat
Ought Parents to Give Children Pocket英语作文
英语高分作文:The importance of protecting the environment
The Limitation of The Violence Shot 暴力镜头的限制英语作文
The Best Thing That Could Ever Happen少儿双语阅读
高一英语写作范文:Is It the Only Way Out To Go To College
英语作文范文:Teaching Machines to Learn on Their Own
英语阅读推荐:How to protect cultural identity
六级英语写作范文:The Celebration of Western Festivals
How to keep a good relationship with parents英语作文
英语名句 The first step is as good as half over 等
关于洪水的英语段落:Mend the roof while the sun shines
大学英语作文:Try to Remember the Good Things
英语阅读:VIT declines to acquire Ang Mo Kio property
About Respecting the Old高中英语作文
Hoopsters Believe In Hot-or-Not Hand美文欣赏
七年级英语上册《Unit 2 This is my sister》教学设计
Choice of large enterprises or small英语四级作文
A letter to my English teache英语作文
六下英语Unit5Ourearthlookslikethisfromspace教案
A Letter to the Editor of a Newspaper英语四级作文
The Reasons of Going to School 英语作文
《the most interesting stories》湘少版六下Unit7的相关知识及
How to Spend the Winter Holiday初中英语作文
英语四级听力训练技巧
Passage Eighteen (Strictly Ban smoking)英语阅读理解
八年级《unit8 Why don’t you get her a scarf? Period1》评课稿
VOA的慢速英语听力文摘:Mystery at The Ice Castle Inn
四年级英语作文:This is me
小学六年级英语教学设计:The sports meeting Lesson
A Mixed Blessing for the City英语四六级作文