Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mercury vapor lamps light turnpike tunnels
Use of mercury vapor lamps for lighting of 7 tunnels, aggregating 6.7 mi in length, with more than 1500 lighting units, including 10,000-lumen sodium vapor lamps for marking tunnel approaches and traffic interchanges.
Mercury vapor lamps light turnpike tunnels
Use of mercury vapor lamps for lighting of 7 tunnels, aggregating 6.7 mi in length, with more than 1500 lighting units, including 10,000-lumen sodium vapor lamps for marking tunnel approaches and traffic interchanges.
Mercury vapor lamps light turnpike tunnels
Construction Methods
Construction Methods ; 23
1941
2 pages
Aufsatz (Zeitschrift)
Englisch
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