介绍当今西方国家积极推广采用的一种技术性能先进、设施更具人性化的新型有轨电车,重点阐述其具有突破性改进的供电制式和工作机理,以及安全、环保特性等。 This paper introduces a new tramcar with more advanced technology and more humane facilities which is actively promoted in western countries today. It mainly introduces its breakthrough improved power supply system and working mechanism as well as safety and environmental protection features.