doughnutdouglas scale or douglas or douglasdouglasitedoveritedovetail bardowagers humpdoweldowel actiondowel bardowel jointdowel pindown dipdown hand weldingdown stream cofferdamdown throwndown to basin faultdown warpingdown wearingdownbuildingdowncurrentdowncuttingdowndragdowneyitedownfaulteddowngradedownhilldownlapdownpipedownslopedownstreamdownstream filldownstream shelldownstream toedownstream toe or linedown–structure methoddownthrowdownwashdownwastingdownwelling or sinking or sinkingdowsing roddoyleitedozingdozyitedraft tube conedraft tube elbowdraft tube linerdraft tube or draft pipe or draft pipedraft tube water level control systemdragdrag and slippage zone
