It plays an amenity, shade protection of roads, dust compartment, the regulation of climate, the protection and improvement of urban ecological environment, and other important role.
它起着美化市容，遮荫护路，隔间防尘，调节气候，保护和改善城市生态环境等重要作用。
Implementation of the highway preventive maintenance will extend the life of roads and ancillary facilities to lay a solid foundation for the protection of roads play a multiplier role.
实施公路预防性养护，将为延长公路及其附属设施的寿命奠定坚实的基础，对保护公路起到事半功倍的作用。
To participate in the specific rectifications of traffic safety on roads and waters and fire protection safety of civil explosion equipment and materials and condensedly populated places.
参与道路和水上交通安全、民爆器材、人员密集场所消防安全专项整治工作。
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