由于十分苛刻的材料要求，设计可见光波段的隐身斗篷更具挑战性。
Designing invisibility cloaks that can conceal objects from visible light has been more challenging due to the strict material requirements.
无论如何这是重要的材料，但是像去年的隐身衣一样，它并不预示在日常生活中会有魔术般的应用——很长很长时间之后也不会。
By any measure, that's important stuff, though as with last year's invisibility cloak, it doesn't portend magical applications in the everyday world — and won't for a long, long time.
本周，一个由物理学家和材料学家组成的小组宣布，该小组已经设计出了原型机，未来可用于制造高性能的隐身衣。
This week a team of physicists and materials scientists announced it had devised a pattern for a potentially perfect invisibility cloak.
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