Conyac で依頼された翻訳結果を公開

The reason for the superiority of electric lamps over gas lamps after 1915 were the development of generating and sending electricity, competition between electricity companies, and appearance of tungsten lamps. In addition, gas rates were raised because the price of coal rised sharply influenced by World War I, therefore resulting the gas companies to withdraw from illumination market and were forced to exploit heat market. In Tokyo, although the electric lamp fee was reduced gradually, the its fee was relatively expensive compared to the gas lamps and oil lamps. Therefore, when consumers chose illumination, they also seem to have considered the ease of handling, safety, and cleanness.