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The light of an electric lamp comes from an incandescent filament.
电灯光亮来自白炽灯丝。
youdao
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1880 - Thomas Edison files a patent for his electric incandescent lamp.
1880年的今天，托马斯·爱迪生提出电驱白炽灯的专利申请。
youdao
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1880 - Thomas Edison files a patent for his electric incandescent lamp.
1880年的今天，托马斯·爱迪生提出电驱白炽灯的专利申请。
youdao