当然，城市的交通规划者们对于这个问题也是很清楚的，毕竟，城市交通总是充斥了各式各样的负外部性问题，例如某位司机轻踩刹车的微小行为，就会引发一连串的连锁效应，对众多其他司机产生影响。
Urban planners know this problem all too well. After all, traffic is filled with negative externalities.
这类强而轻的材料具有广泛的用途，比如在交通运输工具及假肢器械行业的应用。
There are a wide range of uses for these strong, light weight materials, suchas in vehicles or prosthetic devices.
新型复合材料具备耐磨损、隔温、防腐蚀、强度高、重量轻等多种优点，是现代交通工具上应用的理想材料。
This article intorduces briefly a new kind of composite which has a lot of advantages such as wear-resistance, thermal isolation, corrosion resistance, high strength, and light weight, etc.
应用推荐