因为今天的典礼是在线直播，照明设备必须而且已经调整到超出观察原件的允许值范围之外。
Because today's ceremony is being webcast, the lighting level had to be adjusted beyond that is allowable for viewing of the originals.
而且，由于降低了 透明导电层上的电压降，照明设备的效率得到提高。
Moreover, as the voltage drop over transparent conductive layer is reduced, the efficiency of the lighting device is increased.
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