Also in many technical uses. At the bottom of a sluice or entrance to a dock: A platform placed so as to intercept the fall of water, and prevent…
| 单词 | θ3342 |
| 释义 | the world > the earth > water > lake > pool > [noun] > artificially confined water > contrivance for impounding water > gate, lock, or sluice > other parts of (6) apron1721 Also in many technical uses. At the bottom of a sluice or entrance to a dock: A platform placed so as to intercept the fall of water, and prevent… pointing door1744 one of a pair of sluice doors which close against each other to form a point, so as to resist the pressure of the water. penstock1763 Originally and chiefly U.S. A channel, trough, or tube for conveying water from a lake, dam, etc., esp. to a waterwheel or turbine. lock seat1787 an area excavated for the construction of a canal or river lock. rymer1794 A post in a weir or lock, in or on which a paddle works up and down. trip-sill1905 see quot. |
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