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字词 氖灯
释义 氖灯nǎidēng把氖气填充在真空管里制成的灯,通电时发出红色光,亮度随电压大小而变,光线能透过烟雾,多用做信号灯。{neon light; neon lamp; neon-filled tubular electrical lamp that gives off reddish light that changes its luminosity with voltage and penetrates smoke or fog, oft. used as signal lamp}
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更新时间:2025/1/16 17:08:17