求翻译：世界各国城市公共交通事业的发展进程，受本国经济和科学技术水平的影响，差异较大，而且由于城市所在的地理环境和政治经济地位不同，城市公共交通结构也各具特色。在城市公共交通结构中一般主要包括公共汽车、无轨电车、有轨电车、快速有轨电车、 城市公共交通地下铁道和出租汽车等客运营业系统。随着城市的发展,铁路市郊旅客运输亦成为重要组成部分。此外,在一些有河湖流经的城市，公共交通系统中还包括有轮渡。在山区城市中，索道和缆车的运输也有所发展。磁悬浮客运交通以及无人驾驶的出租客车系统正处于试用阶段。是什么意思？

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The countries of the world cause of urban public transportation development process, by their own economic and scientific and technological level, the impact is more varied, and as a result of the city is located in different geographical and political and economic status, and urban public transport

The various countries city mass transit enterprise development advancement, our country economical and the science and technology level influence, the difference is big, moreover because the city is at the geographical environment and the political economic status is different, city mass transit str

Countries in the world of urban public transport development process, from the impact of their economies and the level of science and technology, larger differences and because the city is located in different geographical and political-economic status, structure of urban public transport has differ

Countries in the world of urban public transport development process, from the impact of their economies and the level of science and technology, larger differences and because the city is located in different geographical and political-economic status, structure of urban public transport has differ