| 1. | Also important are the rotation of the slipstream and the change of downwash at the tail .
此外，滑流的旋转和尾翼处下洗的变化也是重要的因素。 |
| 2. | She was washing her sheets in the rocks below
她那时在岩石下洗被单 |
| 3. | Emulation results show that guided missile ' s fly situation and its initial trajectory have influence by the down wash
仿真结果显示，下洗对导弹和其初始弹道确有影响。 |
| 4. | The results of research show that the rotor thrust increase 4 % and the download force on the wing can be as large as 10 percent of the total rotor thrust
研究结果表明：旋翼的拉力大约增加4 ，旋翼的下洗载荷相当于整个旋翼拉力的10左右。 |
| 5. | When the tilt rotor vehicle is in hover , the aerodynamic download of the rotor flowfield imposes on the wing . in this time , the rotor / wing interaction is severe
倾转旋翼飞行器悬停时，旋翼的下洗流刚好作用在机翼上，此时，旋翼机翼间的气动干扰非常剧烈。 |
| 6. | The down wash flow has been mainly studied in its forming and its model , and also the its distribute is given under terms with helicopter hang and park or low - speed flying , for offering the basis of next research on the down wash flow ' s influence of the guided missile launching
主要对下洗流的形成和模型进行了研究，并给出了在直升机悬停和低速前飞条件下的下洗流分布，为下一步研究导弹发射受下洗影响提供了依据。 |
| 7. | Thirdly , the air - air missile ' s model is studied , and set up guided missile motion equations that passes through the area of the down wash . using the preceding down wash distributing data , the fly situation and orbit changes in initial stages of the guided missile launch have been studied
再次，对空空导弹的模型进行了研究，并建立了导弹穿越旋翼下洗区域的运动方程，运用前面的下洗分布数据，研究了导弹发射最初阶段的运动情况和轨迹变化。 |
| 8. | Navier - strokes equation was solved using simple method . lam - bremhorst k - e was used to simulate turbulent flow . it was indicated in this thesis that a longitudinal vortex would be produced after the jet exhausted from a plate into a boundary layer at a pitch angle and a skew angle
研究结果表明，有一定倾斜角度的单个射流与主流作用后，将在下游产生一个流向涡旋，涡旋使得边界层内的速度和雷诺应力发生严重扭曲，从而形成上洗区域和下洗区域。 |
| 9. | Emulation results show that the supposed attack system can rapidly trace the motion target to satisfy the launching condition , attack the target successfully and display the launch process under the wing down wash . it offers better emulation foundation for improving the percentage of hits and fight accurately
仿真结果表明，本文建立的攻击系统，能够快速的跟踪目标，实现目标攻击，并反应了有旋翼下洗影响的导弹发射过程，为提高命中率精确作战提供了较好的仿真基础。 |
| 10. | In this paper , the research is on the air - air missile attack system launched by armed helicopter under abominable environments which is based on the fixed - wing fighter and consider properties of helicopter itself , and the focus of that is on the model of helicopter , rotor waves , air - air missile and integrated fire / flight
本文在参考固定翼飞机攻击系统设计的基础上，同时结合直升机自身的特点，建立了武装直升机在恶劣环境下发射空空导弹的攻击系统，重点对直升机、旋翼下洗、空空导弹和综合火/飞这四部分进行了研究。 |
