首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
With Airbus’s giant A380 airliner about in to take to the skies, you might think planes could not get much bigger — and you woul
With Airbus’s giant A380 airliner about in to take to the skies, you might think planes could not get much bigger — and you woul
admin
2011-03-22
40
问题
With Airbus’s giant A380 airliner about in to take to the skies, you might think planes could not get much bigger — and you would be right. For a given design, it turns【21】, there comes a point where the wings become too heavy to generate【22】lift to carry their own weight.【23】a new way of designing and making materials could【24】that problem. Two engineers【25】University College London have devised an innovative way to customise and control the【26】of a material throughout its three-dimensional structure.
In the【27】of a wing, this would make possible a material that is dense, strong and load-bearing at one end, close to the fuselage,【28】the extremities could be made less dense, lighter and more【29】. It is like making bespoke materials,【30】you can customise the physical properties of every cubic millimetre of a structure.
The new technique combines existing technologies in a(n)【31】way. It starts by using finite-element-analysis software, of the type commonly used by engineers,【32】a virtual prototype of the object. The software models the stresses and strains that the object will need to【33】throughout its structure. Using this information it is then【34】to calculate the precise forces acting on millions of smaller subsections of the structure.【35】of these subsections is【36】treated as a separate object with its own set of forces acting on it — and each subsection【37】for a different microstructure to absorb those local forces.
Designing so many microstructures manually【38】be a huge task, so the researchers apply an optimisation program, called a genetic algorithm,【39】This uses a process of randomization and trial-and-error to search the vast number of possible microstructures to find the most【40】design for each subsection.
选项
A、novel
B、strange
C、odd
D、peculiar
答案
A
解析
本题的考点为形容词的词义辨析。in a novel way以一种新颖的方法。
转载请注明原文地址:https://kaotiyun.com/show/1Uxd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Whethertheeyesare"thewindowsofthesoul"isdebatable;thattheyareintenselyimportantininterpersonalcommunicationis
Whatisthemarketingconceptdiscussedinthepassage?
Almostdaily,thegulfbetweeneducationandemploymentwidens.Careersofficerscomplainaboutasystemthatpresentsthemwith
Duringtheearlyperiodoftheearth’shistory,theweatheronearthapparentlyfluctuatedbetweenbrightsunandshowers.Inr
In1990,thenumberofjobshavingnothingtodowithcomputersintheUniteStateswillbereducedto______.
Whenitcomestogenderrolesinfamilies,itseemsthemorethingschange,themoretheystaythesame.Forthefirsttime,the
ThedivorcerateinAmericahasreached
ThedivorcerateinAmericahasreached______.
IfyouplantoflyoffonyourholidaysthisChristmasorNewYear,relax.Forgetthefactthatairlinercrasheshavekilledm
BoeingCo’sSonicCruiser,aproposedfasterairliner,wouldbemostlyblendedmaterial,programdirectorWaltGillettesaidrec
随机试题
试述糖皮质激素分泌的调节机制。
《断魂枪》开头的社会环境描写,对后文人物性格的展现所起的主要作用是()
窃以为过矣。过:
A、>2500mlB、>2000mlC、<1500mlD、1000mlE、500ml基础补液量()
甲企业有一项专利权,最初入账价值为100000元,有效使用期限为5年;企业在使用2年后将其对外出售,取得转让收入80000元。甲企业除转让收入按5%缴纳营业税外无其他支出,则甲企业转让该项专利权能使其税前利润增加()元。
下列有关无形资产转让所发生的收支中,其会计处理正确的有()。
国际货币基金组织
Whosebirthdaypartyisthewomangoingto?
OnecountrythatiscertainoftheeffectoffilmsontourismisAustralia.TheTouristOfficeofQueenslandsaythatCrocodile
JapanisintheeastofChina.
最新回复
(
0
)