kotróhajó znamená v Angličtina

dredge [dredges]▼◼◼◼noun
[UK: dredʒ] [US: ˈdredʒ]

couloir▼noun
[UK: ˈkuːl.wɑː] [US: kuːl.ˈwɑːr]

dredge-boat▼noun
[UK: dredʒ bəʊt] [US: ˈdredʒ boʊt]