Considered of system requirements of dynamic traffic management comprehensively, the dissertation put forward the general concept and mathematical description of the traffic zone.

综合考虑交通动态管理的系统需求，提出了交通小区的通用概念及数学描述。

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The air sampled from the South Pole's clean air sector (a zone where air traffic, land vehicles, and even foot traffic is strictly limited) is touted as the cleanest air on Earth.

南极的洁净空气扇区(这个区域基本上没有任何空中，地面交通工具，甚至连行人都没有)被认为是地球上空气最干净的地方。

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Traffic between the private addresses of Amazon EC2 instances in the same availability zone is free, but traffic from one Amazon EC2 instance to the public address of another instance is billable.

在同一个可用性区域中amazon EC2实例私有地址之间的通信是免费的，但是从一个amazon EC2实例到另一个实例的公共地址的通信是要付费的。

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In comparison to the busy city centre, the west zone has little traffic and attracts working-class young people, families and retirees.

BBC: Living in: 2015��s hottest cities

Mr Hughes said the High Street during the daytime was meant to be a designated "pedestrian zone" but traffic was using the street at all hours by some drivers abusing the system because of the broken bollards.

BBC: Bangor High Street

On Martin's goal, Malkin curled behind the New York net with the puck and sent a hard pass high in the zone to Martin, who ripped a drive through traffic in front.

NPR: Orpik's OT Goal Sends Penguins To 2nd Round