白炽电灯的关键部分是灯泡里的钨丝。
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 come from an incandescent filament.
白炽电灯的关键部分是灯泡里的钨丝。
A fine wire heated electrically to incandescence in an electric lamp.
1878年巴黎世博会，展出了爱迪生发明的用钨丝制作的白炽电灯。
Paris Expo, at the Edison invented produced by the tungsten filament incandescent lamp.
1878年巴黎世博会，展出了爱迪生发明的用钨丝制作的白炽电灯。
Paris Expo, at the Edison invented produced by the tungsten filament incandescent lamp.
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