electric locomotive短语¹³¹⁶²⁰⁺³ 基本英英例句 电气机车 搭乘火车 Noun: a locomotive that is powered by an electric motor Understand the development's trend and equipments of the electric locomotive control technique from the domestic and international. 了解国内外电力机车控制技术的发展趋势和电力机车主要控制设备； cnki