释义 |
drainage holes in British English (ˈdreɪnɪdʒ həʊlz) plural nounthe holes in a plant pot that allow excess water to drain away Examples of 'drainage holes' in a sentencedrainage holes I'm convinced that drainage holes in the frame are vital.Select a frost-proof container with plenty of drainage holes and fill with ericaceous compost.Line porous containers with plastic (make drainage holes) and mulch the surface with grit or slate to reduce evaporation.Check for generous drainage holes, too, because some pots are purely ornamental and are supposed to have another plastic 'inner' inside.In severe cases, endoscopic surgery can wash out the sinuses and widen the drainage holes.Watered regularly over the next few weeks, moisture will run through the drainage holes in the base to wet soil beneath.This will allow the drainage holes to work properly and stop the compost absorbing moisture from the paving.The tray has drainage holes punched into it and if it is to go onto a pitched roof, these are at the lowest point.It is also important not to overwater the containers and to ensure that the drainage holes are kept unblocked.To alleviate the problem, lift the pots off the paving with three slips of stone, to let the drainage holes work properly. |