For high voltages,overhead-line construction is generally used with suspension-type insulators. Steel towers,called pylons,serve to carry the insulators,with each conductor suspended from the bottom of a group or string of insulator units.
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In ancient Egypt, pairs of tapering stone towers called pylons marked the entrances of temples.
在古埃及，双双对对凿尖的石头塔是进入庙宇门口的标志。
A pylon is supposed to be a beautiful thing. In ancient Egypt, pairs of tapering stone towers called pylons marked the entrances of temples.
高塔应属美之物，在古埃及，成对下粗上细的塔门标出庙宇的入口，基督教建筑师也借用哥特教堂前面竖上双塔的想法。
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