(a) = gridiron, n.; (b) see quot. 1750.
单词 | θ61580 |
释义 | the world > physical sensation > cleanness and dirtiness > clearing of refuse matter > [noun] > clearing drain or sewer > device for (3) grate-iron1750 (a) = gridiron, n.; (b) see quot. 1750. plunger1885 A thing which plunges or may be plunged; esp. an instrument or part of a mechanism which works or is… Plumbing. A device consisting of a flexible… force cup1907 a rubber cup attached to a handle which by creating a vacuum in a blocked drain is used to clear it. |
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