Inspection technology allows more than 100 million measurements a second to be made across the ribbon, locating flaws the unaided eye would be unable to see.
检测技术可以在一秒钟内对玻璃带进行超过1亿次的测量，从而定位肉眼无法看到的瑕疵。
The above spectacular picture of the Milky Way arch, however, goes where the unaided eye cannot.
然而以上这张弧状银河的壮观的图片让我们达到了肉眼看不到的界限。
The faintest star you can see with your unaided eye is about sixth magnitude (from dark skies) whereas the brightest stars are magnitude zero (or even a negative number).
你用肉眼所能看到的最暗的星的亮度值大约是第6级(如果是黑夜的话)，而最亮的星的亮度值是0(更有甚者其亮度值为负)。
应用推荐