deep-sea research equipment — collecting nets, dredges, traps and sounding instruments descend among fish, jellyfish, corals and other marine life - 挖泥船 幅插畫檔、美工圖案、卡通及圖標
vintage illustration of fishermen dredging for oysters, history fishing industry, 1850s 19th century - 挖泥船 幅插畫檔、美工圖案、卡通及圖標釣魚, 歷史
vector illustration of construction site with equipment. an excavator and a cargo car is working to unload the sand. construction equipment - 挖泥船 幅插畫檔、美工圖案、卡通及圖標
oliver evans’s amphibious steam dredger oructor amphibolis, 1804 — early american steam-powered vehicle with paddle wheel, road wheels, walking-beam engine and two men aboard - 挖泥船 幅插畫檔、美工圖案、卡通及圖標