draw-off tank抽水罐
draw-off equipment牵引设备
draw-off cock泄放旋塞
draw-off level排泄孔的水平
draw-off pan抽出塔盘;泄流板
draw-off tube牵拉管
draw-off plug排出塞
draw-off header排水联箱
同义词：draw awaypull off
同义词：withdrawdrawtake out
V（动词） to cause (a liquid) to flow from something 使(液体 )倾泻