powered lift 中文意思是什麼
powered lift
解釋
動力升力-
Especially. the cotton textile industry. after the development of import substitution, obtained the ability which leaded to the exportment, the ability of international competition was powered because of the above change of export process industry and the lift of the level of export substitution, its played an important role to push economic development in modem china
正是由於出口加工業的上述變化和出口替代水平的提高，它對近代中國的經濟發展所起的推動作用也是重大的。它擴大了出口，奠定了創匯的堅實基礎，很大程度上平衡了外貿上的赤字差距，提供了工業化所需的資金。 -
An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift
旋翼機在飛行中以常規的螺旋槳來驅動並靠慣性滑行支持的，提供升力的水平旋轉儀 -
Based on the mechanism of slipstream interaction, described in this thesis is firstly the interaction of the propeller slipstream with the wing 、 fuselage and horizontal tail. subsequently, the changes in lift 、 drag and pitching moment are derived, giving an engineering model for the prediction of the increments in the aerodynamic characteristics caused by the interference between the propeller slipstream and the other parts of aircraft. this method offers a powerful means to the calculation of the aerodynamic interaction between the propeller and the aircraft, providing reliable data for the design of and aerodynamic calculation on propeller - powered aircraft
本文以滑流干擾的機理為出發點，研究了螺旋槳滑流與飛機機翼、機身、平尾組合體之間的相互影響，推導出滑流引起的飛機升力、阻力和俯仰力矩的變化，給出了滑流干擾對機體氣動特性影響的工程估算方法，為研究螺旋槳與飛機部件之間的相互干擾提供了有力的工具，為以螺旋槳發動機為動力的飛機的設計和氣動計算提供可靠的依據。 -
Measurements of sound emitted by low lift, high lift, and rough terrain powered industrial trucks
低提升，高提升和不平地機動工業裝卸車噪音測量 -
Measurement of sound emitted by low lift, high lift, and rough terrain powered industrial trucks
低舉升高度高舉升高度和越野動力工業裝載車的噪聲輻射測量 -
Measurements of sound emitted by low lift, high lift, and rough terrain powered industrial trucks ; addenda
低提升，高提升和不平地機動工業裝卸車噪音測量修改件
分享友人