常見例句Also important are the rotation of the slipstream and the change of downwash at the tail. 此外,滑流的旋轉(zhuǎn)和尾翼處下洗的變化也是重要的因素。Dust effects when driving over certain surfaces, rotor downwash effects for helicopters and VTOL aircraft.. 粉塵影響駕車時的某些表面,轉(zhuǎn)子影響直升機(jī)和垂直起降飛機(jī)。This induced component of velocity is called downwash, and it reduces the amount of lift produced by the wing. 這種誘導(dǎo)速度構(gòu)成了所謂的下洗氣流,而且它使機(jī)翼產(chǎn)生的總升力減小。At the same time the canard surface creates a downwash which degrade the main wing's performance. 與此同時,鴨翼面產(chǎn)生下洗氣流,它使主翼效率下降。Finally, the rotor downwash influence on infrared intensity of the hedicopter is calculated and analyzed. 最后,計算和分析了旋翼洗流對直升機(jī)紅外輻射強(qiáng)度的影響。Image method ideal vortex model is used for the analysis of how ground effect impacts wingtip vortex and airflow downwash angle. 采用鏡像法理想渦模型分析了地面效應(yīng)對翼尖渦位置和氣流下洗角的影響; 返回 downwash