Subway tunnel with rows of pillars and electrical switchboxes
底野　庵太

地下トンネル、地下鉄、地下線路

Subway tunnel with rows of pillars and electrical switchboxes

subwaytunnelelectricalswitchboxesinfrastructureurban transportrailwaystructurestechnologyequipment

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Complex arrangement of underground pipes and structures
ksk_1990

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