因此，边缘上的点每1.8秒必须比中心的点多转50英寸，使它不得不在同样的时间里覆盖不到五分之一的距离。
So the point on the edge must rotate much faster to cover that 50 in. in 1.8 seconds than the point near the center, which has to cover less than a fifth of the distance in the same time.
在面条煮熟前的30秒，把8-10片的芦笋切成1寸，以及切成小块的花椰菜加入。
About 30 seconds before the pasta is done, add 8 to 10 asparagus spears trimmed and cut into 1-inch pieces and a half bunch of broccolini, cut into small pieces.
这个装置的原型使用了一个10英寸的屏幕，这个屏幕是用一种新型“光致折变”（photorefractive）材料制成的，这种材料使得全息图能够每两秒刷新一次。
The prototype uses a 10 inch screen made from a new type of 'photorefractive' material that can refresh a hologram every two seconds.
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