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level |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.06 sec. |
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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. |
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| The light waves have to enter the crystals along vertical surfaces and exit the ice crystals along horizontal surfaces. The main difference is that an expanded laser beam with optics illuminates a line across a horizontal surface. Unfamiliar parts littered every horizontal surface. |
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horizontal surface
