而交通阻塞和经常性的建筑工程也开始出现。
Though choking traffic and constant construction work are beginning to take their toll.
采用MPLS流量工程可以避免引起网络阻塞，为用户提供更好的服务。
The network choking can be avoided by using MPLS Traffic Engineering and better service for user provided.
河流中的冰凌不仅直接影响到冬季的航运、交通、引水发电、给排水等水利工程建设事业，而且当冰凌严重阻塞河道时，往往会导致凌洪泛滥成灾，给人民生命财产带来重大损失。
Ice will not only influence shipping, transportation, hydraulic power, water and sewage, but also lead to ice flood and cause huge losses when ice blocks the river course severely.
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