The loss and congestion of information are main reasons that affect the quality of service in ATM network.

在AT M网络中，信息的拥塞及丢失是影响网络业务服务质量的主要原因。

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And oils—even healthy ones like olive oil—can become toxic when they break down, causing congestion of the arteries and joint disease, Mekary says.

任何油——甚至像健康的橄榄油——当他们分解后都能变得有毒，导致动脉堵塞和关节疾病。

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If it can be controlled effectively, the disadvantaged effect of congestion of network will be controlled. Otherwise the local congestion will lead the paralysis of whole network.

如果能对这种现象加以有效的控制，阻塞对网络所产生的不利影响也将得到控制，否则网络局部的阻塞，可能引起整个网络的瘫痪。

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Clark sees traffic congestion as one of the most serious problems of our time - for a variety of reasons.

VOA: standard.2010.07.26

because if you take it during the day, there'll be a lot of traffic and congestion.

因为如果你白天坐，道路会拥堵。

伦敦的夜生活 - SpeakingMax英语口语达人

To ease traffic congestion,Clark says, Houston transportation officials created special safety programs to reduce the number of accidents, which tie up traffic.

VOA: standard.2010.07.26

These airports are free of the aggravating congestion of the 50 largest domestic hubs, through which 90% of travelers pass.

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Those who argue that road pricing is unfair because it discriminates against the poor ignore the fact that people too poor to own a vehicle, together with the young and the very old, suffer the ill-effects of congestion without the benefits of personal mobility.

ECONOMIST: Jam today, road pricing tomorrow

As a result, Mr Parry finds, the net benefits of a road-specific peak-period fee (the gain of less congestion minus the cost of disrupted travel) would be about three times bigger than a petrol-tax increase calculated to curb congestion by the same amount.

ECONOMIST: How much should petrol be taxed?