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维修人员和机库设施的紧缺,以及建新机库的成本太高是俄罗斯本土发展航空维修业的主要障碍。据报道,目前在俄罗斯运营的西方民用客机已超过400架,而且呈增长态势。未来几年,俄罗斯航空维修市场将一片繁荣,这对于俄罗斯本土的航空维修企业来说,无疑既是机遇又是挑战。  相似文献   
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A technique for choosing a rational load-carrying scheme and weight analysis at the early stages of designing lifting surfaces with the use of a special model of the finite element method is proposed. The distribution of structure loads is determined with regard for its deformation. The numerical example is presented.  相似文献   
3.
Statistical mid-latitude models of altitude distribution of temperature, water vapor, ozone, carbon dioxide and trace gases (CO, CH4, N2O, NO, NO2) are considered. The mean characteristics of altitude profiles of these parameters, as well as their time and space variability, have been taken into account. The statistical regional models were constructed using a temperature-humidy complex. The considered statistical mid-latitude models have been constructed as applied to solutions of the problems on remote sounding of the atmosphere and underlying surface from outer space.  相似文献   
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