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level: see spirit level spirit level, tool for determining whether a surface is horizontal. It consists essentially of a slightly bent transparent tube that is held in a frame. The tube contains some alcohol, ether, or similar fluid but is not entirely filled, so that it also contains a ..... Click the link for more information. . levelDevice for establishing a horizontal plane. It consists of a small, sealed glass tube containing liquid and an air bubble; the tube is fixed horizontally in a block or frame with a smooth lower surface. When the bubble is in the middle of the glass tube, the device is on a level surface; adjustment to the horizontal is indicated by movement of the bubble. The glass tube is slightly bowed, and the level's sensitivity is proportional to the radius of curvature. level 1. Engineering a device, such as a spirit level, for determining whether a surface is horizontal 2. Geography any of the successive layers of material that have been deposited with the passage of time to build up and raise the height of the land surface 3. Physics the ratio of the magnitude of a physical quantity to an arbitrary magnitude How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Fedeli says that, in the last few years, building permits had pretty much levelled off around the $30-million mark. Opium production in Afghanistan, which had been skyrocketing from about 200 metric tonnes per year before the war broke out in 1978 to more than 2,200 tonnes in 1995 - following a brief surge to 3,400 tonnes in 1994 - has levelled off for the first time in 18 years, according to a UNDP report. They also retired in the midst of a long term trend of declining male labor-force participation which, by the mid-1980's, had levelled off and possibly, reversed. |
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