switch rail短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 尖轨 The influences of friction coefficient of the switch slide baseplate on the actuating force, and the minimum distance between the rail and the switch rail have been analyzed. 通过建立尖轨、滑床板模型，分析了不同滑床板摩擦系数对尖轨扳动力以及基本轨与尖轨最小间隔的影响，并进行了针对性的试验。 cnki