forth bridge pier under construction — towering steel support with tubular columns, cross bracing and scaffolding rising above the firth of forth - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標
forth bridge cantilever principle demonstrated by three seated men balancing brick weights — engineers illustrate the structural concept of the famous railway bridge with a live model - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標
antique photo of world's landmarks (circa 1894): forth bridge, scotland - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標蘇格蘭, 復古風格
technical drawings and diagrams from 19th century engineering magazine, forth bridge - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標
model of the forth bridge, made out of match boxes, victorian model making hobby, 1890s - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標
forth bridge under construction at queensferry — immense steel cantilevers rise above the firth of forth as workers stand on the unfinished girders - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標
trusswork is a structural framework of interconnected beams, that forms rigid triangular units to support roofs, bridges, and other structures - 昆士菲力 幅插畫檔、美工圖案、卡通及圖標橋 - 建築物, 圖畫 - 藝術品, 復古風格
