It wasn't a very efficient technology, and [it] required a lot of tubes and bulbs and heat to do basic mathematically calculations.
这不是一项非常高效的技术，它需要大量的管子和灯泡和热量来进行基本的数学计算。
Indeed, whereas traditional light bulbs emit just 5% of their energy as light, and fluorescent tubes about 15%, the Ceravision lamp has an efficiency greater than 50%.
确实，传统的电灯泡只将5%的能量换化为光能，荧光管则用15%的能量换化为光能，而凯若维森灯的能源利用率至少是50%。
The Lamp Works factory in Harrison N.J. originally constructed for Edison's bulbs was repurposed in 1930 to manufacture radio tubes for GE subsidiary RCA.
1930年，位于新泽西州哈里森市的那间最初生产爱迪生灯泡的制造厂重组后，为通用的子公司——美国无线电公司生产电子管。
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