The reverse side of the mirror should be in continuous contact with air without needing ventilation .
反射镜的背面应经常与空气接触但无需通风。
The reverse side of the mirror should be in continuous contact with air without needing ventilation.
反射镜的背面应经常与空气接触但无需通风。
Why is it that the mirror appears to reverse left and right, but not up and down?
为什么镜子中的影像似乎颠倒了左右，却没有颠倒上下？
Indeed, the reverse seems to be the case, that a mirror finish actually degrades performance.
事实上，相反的似乎是怎样，那镜面光洁度实际上会降低网路的效能。
Indeed, the reverse seems to be the case, that a mirror finish actually degrades performance.
事实上，相反的似乎是怎样，那镜面光洁度实际上会降低网路的效能。
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