Scientists say 18 different hexagonal mirrors had to fit just right in place to capture the crisp image.

科学家们表示，18 面不同的六边形镜子必须恰到好处地贴合位置，才能捕捉到清晰的图像。

Each of its 36 hexagonal mirror segments is polished so smooth, if they were the size of the Earth, their largest imperfections would only be three feet high.

它的 36 个六边形镜面每一个都被抛光得如此光滑，如果它们有地球那么大，它们最大的缺陷也只有三英尺高。