Edison was not the first person to have thought of using electricity for illumination: cumbersome electricarc-lighting had been employed in public Spaces and factories for a number of years.
爱迪生不是第一个想到用电照明的人；许多年来，笨重的电弧灯就在公共区域和工厂投入使用。
2
To take away the refining part of the steel making cycle off an electricarc furnace, which is discussed elsewhere, is an excellent start.
把炼钢周期中的精炼阶段从电弧炉中移走（这个问题将在别处加以讨论），是一个良好的开端。
3
Connect the ground connection of the electricarc welding equipment as near as possible to the welding point on the part to be welded.