单词 | zone |
释义 | zone [zōn] ANALYTICAL CHEMISTRY See <<band>> COMPUTER SCIENCE 1. One of the top three rows of a punched card, namely, the 11, 12, and zero rows. 2. See <<storage area>> CRYSTALLOGRAPHY A set of crystal faces which intersect (or would intersect, if extended) along edges which are all parallel. GEOGRAPHY An area or region of latitudinal character. GEOLOGY A belt, layer, band, or strip of earth material such as rock or soil. MATHEMATICS The portion of a sphere lying between two parallel planes that intersect the sphere. MECHANICAL ENGINEERING 1. In a heating or air- conditioning system, one or more spaces whose temperature is regulated by a single control. 2. A subdivision of a sprinkler, water-supply, or standpipe system. ORDNANCE 1. Any tactical area of importance, generally parallel to the front, such as a fortified area, a defensive position, a combat zone, or a traffic-control zone. 2. An area in which projectiles will fall when a given propelling charge is used and the elevation is varied between the minimum and the maximum; in practice, generally limited to howitzer and mortar firings. |
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