Grade separation
volume
British pronunciation/ɡɹˈeɪd sˌɛpəɹˈeɪʃən/
American pronunciation/ɡɹˈeɪd sˌɛpɚɹˈeɪʃən/

تعريف ومعنى "grade separation"

Grade separation
01

a crossing that uses an underpass or overpass

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