时间：2011-02-23 15:18来源：蓝天飞行翻译 作者：航空 点击：次
|
decrease noun /dikris/ a lessening or reduction . A decrease in power results in the aircraft descending. . verb /d.kris/ to become less, to fall . Air density and pressure decrease with an increase in altitude. . opposite (all senses) increase deduce /d.djus/ verb to work some-thing out in the mind using information provided . Sometimes, it is possible to estimate the depth of the layer of mist or fog from the ground observations and hence to deduce the ground range from any height. defect /difekt/ noun a fault or error . Low oil pressure or excessive temper-ature indicate the development of a pos-sible defect. defective /d.fekt.v/ adjective faulty or not operating correctly . Loss of sup-ply pressure is caused by either a defec-tive booster pump or lack of fuel. define /d.fa.n/ verb 1. to give an exact explanation, as in a dictionary . it is not easy to define the word it is dif-ficult to say exactly what the word means 2. to set the limits of something . Cloud tops are very difficult to define. definite /def(.)n.t/ adjective refer-ring to something which is not in doubt, which is certain . Using a time scale on the track, the pilot should be prepared to look for a definite feature at a definite time. Opposite indefinite definition /def.n..(.)n/ noun an exact explanation of what a word or expression means . The definition of a year is the time taken for a planet to describe one orbit around the sun. . by definition understood by the use of the word itself . A sphere is, by definition, round. deflate /difle.t/ verb to allow air to escape from something, so that it becomes smaller or collapses. Opposite inflate . to deflate a tyre to allow the air to escape from a tyre deflation /difle..(.)n/ noun the act of allowing air to escape from some-thing, so that it becomes smaller or col-lapses . Deflation of a tyre is done by depressing the valve. deflect /d.flekt/ verb 1. to cause an object to move away from a neutral or central position . During an out-of-bal-ance turn, the ball in the slip indicator will be deflected to the left or right. 2. to move a moving object, gas or liquid away from its intended path . In an open-cockpit aircraft, the windshield deflects the airflow over the pilot’s head. deflection /d.flek.(.)n/ noun 1. movement away from a central or neu-tral position . Full deflection of the ailerons is sometimes needed on take-off to counteract a crosswind. 2. the movement of a moving object, gas or liquid away from its intended path . In the southern hemisphere the deflection of wind at the equator is to the left. deformation /dif.me..(.)n/ noun a change of the correct shape caused by stress . Deformation of wing panels may be an indication of serious structural damage. deg abbreviation degree degradation /der.de..(.)n/ noun a decrease in quality . Degradation of the radio signal sometimes makes it impossible to understand the message. degrade /d.re.d/ verb to decrease the quality of something . Interfering signals degrade VOR performance. |
