第三章介绍公共汽车事业的相关状况，包括汽车装置、运营路线、票制和车路秩序，从社会层面展示民国时期北京城市公共汽车的面貌。
It will present the general situation of buses in Beijing during the Republic of China at the aspect of society. Chapter 4 explores Beijing buses and the problem of modernization of Beijing city .
来往于伦敦和这条线上其他城市间的旅程时间将会缩短；南北铁路线主线之一的线路运营能力不足问题也将避免。
Journey times between London and other cities will fall; a capacity shortfall on one of the main north-south rail routes will be avoided.
减轻纳税人负担的热情使运营商投标铁路线，答应千方百计节约开支以填充国库。
That enthusiasm for reducing the taxpayers' load has led train operators bidding for routes to promise huge efficiency savings that can then be funnelled back to the Treasury.
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