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The bus handrails have two innovations.The first point is that passengers who are in the hands of th
-e bags or some other heavy objects can hang on the handrails.Another innovation is that between t
-he vacant site of the handrails installed a cylindrical screen.It will show the time, weather , date and
the bus arrival information.Moreover, it will voice broadcast.At last,it is also a place for the advertisem
Nanjing Tech University