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道路改扩建
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道路改扩建
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道路养护
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road reconstruction and expansion
道路改扩建
当原有道路设施的服务能力或水平无法满足使用需求时,利用原有道路资源,通过拓宽、改造等方式,实现道路等级或规模的提升,以提高道路服务水平、通行能力及安全性的工程建设行为。
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ultra violet photography
ultraviolet photography
ultraviolet photometry
ultra-violet photomicrography
ultraviolet polarimeter
ultraviolet protection factor
ultraviolet pumping
ultraviolet radiation
ultraviolet radiation detector
ultraviolet radiation meter
Ultraviolet Radiation of the Intergalactic Medium
ultraviolet radiation test
ultraviolet ray
ultraviolet ray detecting
ultraviolet ray disinfection
Ultra-Violet Ray printing
ultraviolet ray-visible absorption spectrum
ultraviolet reflectance spectrometry
ultraviolet refractometry
ultraviolet resistant fiber
ultraviolet satellite
ultraviolet seeker
ultra-violet sensitizer
ultraviolet sensor
ultraviolet sky
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