urban mass短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 城市人口 Moreover the bus signal priority and the pre- signals are introduced and the bus priority network is planned by using the planning method of urban mass transit network. 对公交优先信号、公交预先信号进行了介绍；应用轨道交通线网规划的方法对公交优先通行网络进行规划； cnki