Thomas Edison made thousands of wrong attempts before he was able to create a working light bulb.
托马斯·爱迪生在发明灯泡之前,做了成千上万的尝试。
On June 18, the oldest-known working light bulb in the world will celebrate the 110th year it has burned bright.
六月十八号,世界上已知工作时间最长的电灯泡将庆祝点燃110年。
Sir Joseph Swan of Newcastle announced that he had made a working light bulb on 18 December 1878 and on 18 January 1879 he gave a public demonstration in Sunderland –10 months before Edison.
英国纽卡斯尔的约瑟夫-斯旺爵士说,他在1878年的12月18日就已经发明了一个可以使用的电灯泡了,并且在1879年的1月18日拿到英国桑德兰市做过公开展出,足足比爱迪生早了10个月。
Using solid maintenance free LED light source, high light efficiency, life up to 100 thousand hours; excellent circuit design, working light and strong light can be arbitrary conversion.
采用固态免维护LED光源,光效高,寿命长达10万小时;优良的电路设计,工作光和强光可任意转换。
Using solid maintenance free LED light source, high light efficiency, life up to 100 thousand hours; excellent circuit design, working light and strong light can be arbitrary conversion.
采用固态免维护LED光源,光效高,寿命长达10万小时;优良的电路设计,工作光和强光可任意转换。
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