道路照明，常常是一座城市现代化水平的标志。我们很难想象，在高楼林立，车水马龙的城市大街上，如果再像一、二十年前那样，只稀稀落落地布设几盏昏黄的白炽灯，或如中世纪时代，使用昏暗而摇曳不定的煤油灯、蜡烛照明，会是一幅怎样的景像？其不谐调的巨大反差，一定会令人 Road lighting is often the hallmark of a modern city. It is hard for us to imagine that on dazzling city streets and busy rivers and lads, if only a few dim yellow incandescent lamps are sparsely arranged like those one or two decades ago, or the dimming and swaying of medieval times Kerosene lamp, candle lighting, what kind of scene? The great contrast of its inconsistency, it will certainly make people