The highest temperature-and thus the brightest light-that an incandescent lamp can achieve is the melting point of its tungsten filament.
一盏白炽灯所能达到的最高温度——即最大亮度——是其钨丝熔点的温度。
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.
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。
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