Compared with cars, as a traffic tool, bicycles don't cause environmental problems like air pollution and noise pollution.

与汽车相比，作为交通工具，自行车不会造成空气噪音污染这样的环境问题。

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As a powerful tool for handling spatial information, GIS plays an important role in the supervising and controlling of urban traffic noise pollution.

GIS作为一种空间信息处理的强大工具，在交通噪声的治理和控制中起到重要的作用。

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As a new traffic tool, the dynamoelectric bicycle has become more and more popular.

电动自行车作为一种新型的交通工具，越来越受到人们的欢迎。

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Also, your vehicle can upload its position to road authorities, so they can use variable road tolls as a traffic management tool -- raising the price on busy stretches during rush hours.

CNN: Behold the?all-seeing, self-parking, safety-enforcing, networked car

Using the traffic tool Alexa as a rough estimator, MarkMonitor found that pharmacies included in Alexa's top 100, 000 sites--about a third of the pharmacy sites the researchers traced--now each receive about 99, 000 visitors daily, more than triple the 32, 000 daily visitors per ranked site last year.

FORBES: Pharma's Black Market Boom

Others have suggested that proponents of the plan may have muddled the message by trying to sell the package as a traffic fix, a jobs creator, and an economic development tool.

MSN: Staff writer