Originally Edison used platinum alloys for the filament, in the belief that carbon was impracticable
英
美
- 爱迪生不相信碳可作灯丝用，所以一开始就用铂合金作灯丝。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
