時間：2011-03-11 23:13來源：藍天飛行翻譯 作者：admin 點擊：次
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When computing the adverse loaded center of gravity conditions of an aircraft, if the fuel pulls the center of gravity into the correct range, the minimum fuel must be used. minimum holding altitude. See MHA. minimum IFR altitudes (air traffic control). Minimum altitudes for IFR operations as prescribed in 14 CFR Part 91. These altitudes are published on aeronautical charts and prescribed in Part 95 for airways and routes, and in Part 97 for standard instrument approach procedures. minimum navigation performance specifications. See MNPS. minimum obstruction clearance altitude. See MOCA. minimum reception altitude. See MRA. minimum safe altitude warning. See MSAW. minimum sector altitude (ICAO). The lowest altitude which may be used under emergency conditions which will provide a minimum clearance of 300 m (1,000 feet) above all obstacles located in an area contained within a sector of a circle of 46 km (25 NM) radius centered on a radio aid to navigation. minimum vectoring altitude. See MVA. minor alteration (aircraft alteration). 14 CFR Part 1: “An alteration other than a major alteration.” See major alteration. minor axis of an ellipse. A chord of an ellipse that passes through its center and is perpendicular to the major axis. See ellipse. minor diameter (threaded fastener). The diameter of a threaded fastener measured at the roots of the threads. minority carriers (semiconductor material). The mobile charges within semiconductor materials that are not the majority carriers. In N-type material, holes are the minority carriers, and in P-type material, electrons are the minority carriers. Leakage current in a reverse-biased junction is actually the flow of minority carriers. minor repair (aircraft maintenance). 14 CFR Part 1: “A repair other than a major repair.” See major repair. minuend (mathematical term). The number from which another number, called the subtrahend, is to be subtracted. In the subtraction problem, 8 – 3 = 5, eight is the minuend, three is the subtrahend, and five is the difference. minus. A term that means a negative value, or a value less than zero. Minus values are indicated by using a short dash in front of the value (–4). A minus sign (the short dash) is used in electricity to indicate a negative condition, one in which there is an excess of electrons. minute (angular measurement). An angle equal to one sixtieth of a degree. A complete circle is made up of 360 degrees, or 21,600 minutes. minute (time). A unit of time equal to one sixtieth of an hour, or sixty seconds. mirror image. A duplicate of an object which is like the original object in all ways except that one side is the reverse of the other: the left side is on the right, and the right side is on the left. This term is taken from the image we see formed in a mirror. When we face a mirror, the image we see has its right side on the left and its left side on the right. |
