| 1. | The synergy n9 tail rotor system is ready for hard 3d
协同n9号尾桨打制三维准备 |
| 2. | Both tail rotor blades were severed
尾桨的两片桨叶均折断。 |
| 3. | The machined self lubricating composite tail rotor gears will stand up to the most aggressive 3d flying
加工自润滑复合尾桨齿轮将迎接最激烈的三维飞行 |
| 4. | The machined self lubricating composite tail rotor gears will stand up to the most aggressive 3d flying
加工自润滑复合材料尾桨齿轮都会挺身而出最具侵略性3d飞行 |
| 5. | For a conventional helicopter , the tail rotor is one of primary sources for helicopter noise
尾桨是直升机的主要噪声源,降低尾桨噪声对控制直升机的噪声水平具有重要意义。 |
| 6. | The durable semi - enclosed tail rotor gearbox protects the tail rotor gears while at the same time allowing easy inspection
耐用的半封闭式保护尾桨尾旋翼变速箱齿轮同时允许容易查阅 |
| 7. | The durable semi - enclosed tail rotor gearbox protects the tail rotor gears while at the same time allowing easy inspection
耐用半封闭式尾桨变速箱保护尾桨齿轮同时也可以很容易地查阅 |
| 8. | This thesis provides an approach for the prediction of the tail rotor noise and the design of a tail rotor with low noise level
本文的研究结果为今后发展或逐步完善能用于工程计算的直升机尾桨噪声的预测方法提供了一些指导。 |
| 9. | Chapter 4 presents the mechanism of helicopter tail rotor noise , developed a new analytical model to investigate the noise of tail rotor when helicopter fly forward
在第四章中,通过对直升机尾桨噪声的机理分析,建立了前飞状态下尾桨噪声的计算模型。 |
| 10. | In chapter 5 , the helicopter as350b2 rotor are taken as numerical examples in order to validate the model developed in chapter 4 . finally , chapter 6 summarizes the current research , some advices for future research on this subject is given
应用该模型,第五章以法国宇航公司生产的as350b2 “小松鼠”直升机为算例,计算了前飞状态下孤立尾桨的旋转噪声,验证了计算模型和计算方法的正确性。 |
