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??????? ???????? ? ???????????? ????????????? ???????? "??????" (Douglas Commercial) - подобные работы
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Подобные документы
Effects of noise - a major problem of the turbojet-powered commercial aircrafts. Sleep disturbance and noise influence on health. Noise measurement and rules. Duct lining calculation. Tupolev 154M description and the methods for suppressing jet noise.
???????? ??????, добавлен 25.11.2012