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It cost far more than a regular incandescent bulb.
它比一只普通的白炽灯泡贵得多。
youdao
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The vital part of the incandescent electric lamp is the tungsten wire inside the bulb.
白炽电灯的关键部分是灯泡里的钨丝。
youdao
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The vital part of the incandescent electric lamp is the tungsten wire inside the bulb.
白炽电灯的关键部分是灯泡里的钨丝。
youdao