英语词汇“propfan”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	propfan
释义	propfan propfan [′präp‚fan] (aerospace engineering) An advanced turboprop with very thin, highly swept blades to reduce both compressibility losses and propeller noise during high-speed cruise. propfan An advanced propeller for use at high Mach numbers. It has six to twelve blades. The sweeping of the blade delays the critical Mach number (M_crit) and reduces the noise from the tips of the blades. The sweep also alters the phase of the noise generated by each radial section along the blade, causing a certain amount of interference. This results in noise reduction. A propfan can be used either as a pusher or a tractor.
随便看	computer-aided laser measurement of surfaces computer-aided law and advanced technologies computer aided learning computer-aided learning computer aided learning and authoring environment for tele-education computer aided learning and instruction in science and engineering computer-aided learning and instruction in science and engineering computer aided learning in meteorology computer-aided legal research computer-aided life cycle engineering computer-aided life cycle engineering electronic packaging research center computer-aided lifecycle support computer-aided line balancing computer-aided load manifesting system computer-aided locomotion by implanted electrical stimulation computer-aided lofting computer-aided logic design computer aided logistics computer-aided logistics computer-aided logistics compiler & network computer-aided logistics support computer aided logistics support analysis computer aided machinery computer-aided machining computer-aided maintainability predictor

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