propwash deflection unit
A particular steroid glycoside.
A surname.
A device that is placed over or behind the propeller of a boat to deflect the vessel's propwash downward. The result is a very effective form of agitation dredging. PDUs are primarily used by salvors to remove mud or sand from shallow water shipwrecks.
(historical) Alternative form of Ryukyu
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DiQt（ディクト）
無料
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