Ключевые слова: algae, aquatic, artificial, barge, boat, bodies, catamaran, clean, construction, crane, dredge, dredger, environment, equipment, excavator, extraction, grass, including, industrial, industry, intended, lake, landscape, machine, machinery, mini, mud, natural, nature, pond, purification, reeds, removal, remove, reservoirs, river, sand, sediment, ship, silt, sky, slime, sub, technology, teeth, vessel, waste, water, wood, work,