The ability to exploit metroplex concepts that enable optimal use of runways at multiple airports within metropolitan areas, as a means of reducing air traffic congestion and delays.
发掘大都会观念的能力，使大都市区域内的多个机场的跑道得到最佳利用，以此作为减少空中交通拥堵和延误的一个手段。
Three years ago Mr Morales banned imports of the oldest among these smoke-belching jalopies, to cut air pollution and traffic congestion.
三年前，莫拉莱斯出台禁令禁止进口排放浓烟的旧车以减少空气污染和缓解交通拥堵。
It is free of air-traffic congestion, has no ban on night flights and has plenty of runway space.
迪拜没有空中交通堵塞，对夜间飞行没有限制，有足够的跑道空间。
In big cities, the use of private cars should be discouraged, not only due to health concerns with the air quality but also because everybody is penalized with traffic congestion.
在大城市，应鼓励人们少开私家车，这不仅关乎与健康相关的空气质量，也关乎困扰每个人的交通拥堵。
Beijing yesterday announced a drill to test the effectiveness of the Olympic host city's efforts to improve air quality and ease traffic congestion.
北京昨天宣布，为了测试奥运会主办国对提高空气质量和减轻交通拥挤所作出努力的有效性将举行一次演习。
Officials used the theme "Greener Traffic, Cleaner air" to encourage car owners to take public transportation more often and help ease road congestion and contribute to better air quality.
此次活动的官方主题为“绿色交通•清新空气”，旨在鼓励有车一族多乘坐公共交通出行，从而缓解交通拥堵，提升空气质量。
The increase in the number of cars brings about a lot of problems, such as air pollution, noise, traffic congestion and gas shortage.
汽车数量的增加产生了一系列问题，如空气污染、噪音、交通堵塞和汽油短缺。
For instance, traffic congestion occurs frequently, and air pollution caused by automobile has been more and more serious.
例如，交通拥挤普遍发生，由汽车导致的空气污染已经越来越严重。
Flight schedules that look manageable on paper often don't account for storms, air-traffic congestion or other potential delays that can make a long work day longer.
表面看来比较容易管理的航班计划往往没有考虑到风暴、空中交通拥堵或其他可能的延误，这些因素也会令本已过长的工作时间变得更长。
Cars, for example, emit greenhouse gas, produce huge noises, pollute the air and cause traffic congestion and even dangers that may threaten our lives.
比如，汽车会释放温室气体、制造很大的噪音、污染空气、引起交通堵塞，甚至威胁我们生命的危险。
Cars, for example, emit greenhouse gas, produce huge noises, pollute the air and cause traffic congestion and even dangers that may threaten our lives.
比如，汽车会释放温室气体、制造很大的噪音、污染空气、引起交通堵塞，甚至威胁我们生命的危险。
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