时间：2011-02-23 15:20来源：蓝天飞行翻译 作者：航空 点击：次
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tropical revolving storm an intense depression of a kind that can develop over tropical oceans . Tropical revolv-ing storms originate within 5–15° of the equator. . Tropical revolving storms generally occur from June to October. rhumb /rm/ noun one of the points of a compass rhumb line /rm la.n/ noun 1. a reg-ularly curved line on the surface of the Earth which cuts all meridians at the same angle 2. a steady course taken by aircraft along one compass bearing rhumb line direction /rm la.n da.rek.(.)n/ noun the average of all the great circle directions between the two points . Because the great circle direction between two points on the sur-face of the Earth is not constant, it is often more convenient to consider the rhumb line direction. rib /r.b/ noun one of many cross pieces of the airframe that provide an aircraft wing with shape and strength . Addi-tional strength is required for the rib sections which are placed in the area of the undercarriage mountings, flaps and power plant attachment point. rich /r.t./ adjective referring to a mix-ture in which the ratio of fuel to air is greater than usual . Moving the mixture control lever forward to the rich posi-tion increases the amount of fuel mixing with the air. rich mixture /r.t. m.kst../ noun a fuel/air mixture in which the proportion of fuel is greater than normal ridge /r.d/ noun 1. a long narrow hill with a crest . The mountain ridge stretches for miles. 2. a long zone of rel-atively high atmospheric pressure . a ridge of high pressure . On average, the wind backs with the passage of a ridge. ridge waves /r.d we.vz/ plural noun oscillations about the stable state of the undisturbed air flow with the range of hills providing the disturbance
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