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。
The light of an electric lamp comes from an incandescent filament.
电灯光亮来自白炽灯丝。
The light of an electric lamp come from an incandescent filament.
电灯光亮来自白热的灯丝。
The light of an electric lamp come from an incandescent filament.
白炽电灯的关键部分是灯泡里的钨丝。
The light of an electric lamp come from an incandescent filament.
电灯中用来传送电流的材料叫灯丝或金属丝。
The light of an electric lamp come from an incandescent filament.
灯泡内缺乏空气就使灯丝不致烧掉。
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。
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。
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