With Airbus’ giant A380 airliner about
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 (1) , there
comes a point where the wings become too heavy to generate (2)
lift to carry their own weight. (3) a new way of
designing and making materials could (4) that problem. Two
engineers (5) University College London have devised all
innovative way to customise and control the (6) of a material
throughout its three-dimensional structure. In the (7) of a wing, this would make possible a material that is dense, strong and load-bearing at one end, close to the fuselage, (8) the extremities could be made less dense, lighter and more (9) . It is like making bespoke materials, (10) you can customise the physical p A. many B. much C. enough D. necessary 我来回答: 提交
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