A dredger is a boat or a device which is used to dredge rivers.
挖泥船是用来挖掘或捞取河底物质的船或设备。
The dredger is one of major facilities in the fields of channel dredge, hydro project, prevent or control flood, ocean development, seaport construction etc.
挖泥船是航道疏浚与整治、水利工程、防洪抢险、海洋开发及海港建设的主要工具。
Cutter-suction dredger looses the soil to mix with the water by cutter, and pumps the mud by dredge pump.
绞吸挖泥船是利用绞刀松动泥土，使之与水混合，而后用泥泵将泥浆泵出的挖泥船。
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