1)parafoil[英]['p?r?f?il][美]['p?r?,f??l]翼伞
1.In parafoil system equipments for measurement and control are normally settled on recovery.翼伞系统的测量及操纵设备通常安装在回收物上,为了实现翼伞系统的精确控制归航,分析了回收物和伞体之间的相对运动情况。
2.Based on the characters of parafoil homing trajectory, Serret-Frenet frame was used to describe the shortest distance from the current position to the trimming trajectory.基于翼伞系统归航轨迹的特点,采用Serret-Frenet坐标系表示距离“平衡”轨迹的偏差,得到线性时不变的误差运动方程。
3.In this paper, based on analysis of parafoil opening properties, two-dimensionalopening model of parafoil is presented, canopy radial equation of motion is established.本文分析了冲压式翼伞开伞的特点,提出了一个展弦向二维开伞模型,建立了伞衣的径向运动方程。
英文短句/例句
1.Research on the Control Method of Parawing Posture of the Kite Generator;风筝发电机翼伞姿态控制方法的研究
2.Numerical Simulation of Ram-Air Parachutes with Flap Deflection;冲压式翼伞后缘下拉气动特性的数值研究
3.Position Prediction of Parafoil in Control Rope Pulling Course翼伞空投操纵绳拉动过程中的位置解算
4.Along Broadway men picked their way in ulsters and umbrellas.在百老汇大街上，人们都身穿长外套，手擎雨伞，小心翼翼地走路。
5.Impossibility of using the delta, para and surf if we are morphed.当被变形后将不能使用滑翔翼，降落伞和冲浪板。
6.a small parachute or articulated flap to reduce the speed of an aircraft.降低飞行器飞行速度的小降落伞或连接的副翼。
7.The Wind Tunnel Test Technique and Aerodynamic Characteristics Evaluation Research on Ram Air Parawings;翼型伞风洞测力技术及工程估算方法研究
8.He sketched dozens of propeller-driven helicopters, parachutes, and ornithopters with flapping wings,他设计了几十张靠螺旋桨驱动的直升机、降落伞和扑翼飞机草图，
9.Soaring birds and gliding wings were keys to the design of the first successful human-powered aircraft.翱翔着的飞鸟和滑翔用的伞翼，是这架空前成功的人力飞机设计之关键。
10.To descend by means of a parachute.跳伞，伞降用降落伞下降
11.parachute back pack降落伞之后挂包、主伞包
12.parachute front pack降落伞之前挂包、副伞包
13.The umbrella keeps the rains off the user.雨伞使撑伞人免受雨淋。
14.To engage in the sport of skydiving.参加延缓张伞跳伞运动.
15.To deliver by parachute.伞投，空投用降落伞投放
16.A parachute, such as one for pilots or skydivers.降落伞飞行员或跳伞者的降落伞
17.Resembling, containing, or composed of wings or alae.翼状的，有翼的象翼或翼瓣的，包含翼的或翼瓣，由翼或翼瓣组成的
18.Having, forming, or of the nature of an umbel.具有伞状花序的，形成伞状花序的，伞状花序的
相关短句/例句
Powered parafoil动力翼伞
3)ram air parachute冲压翼伞
1.Wind tunnel test is an important phase in the development of ram air parachutes.冲压翼伞的风洞试验是研制冲压翼伞过程中的一项重要内容。
4)controllable parafoil可控翼伞
1.In this paper, a 9-DOF (Degree of Freedom) flight dynamic model of controllable parafoil system is presented.在建立可控翼伞系统九自由度飞行动力模型的基础上，以翼伞面积为４０ｍ~２的可控翼伞系统为例，对其滑翔及稳定性进行仿真计算和分析，并与六自由度模型结果作了比较，着重分析了伞－回收物相对俯仰运动的稳定性，其结果可在系统设计和实验中参考。
5)parawing['p?r?wi?]翼型伞
1.In addition to the function of the common parachute, such as deceleration and stability, the ram air parawing can be controlled by use of the lines in taper or trailing edge.翼型伞是最有效的具有较高滑翔能力的可展式气动减速器之一。
6)parawing['p?r?wi?]伞翼机
延伸阅读
伞翼机伞翼机parawing以伞翼为升力面的重于空气的固定翼航空器。伞翼位于全机的上方，用纤维织物制成的伞布形成柔性翼面。翼面一般由左右对称的两个部分圆锥面组成。伞翼的平面形状可由充气骨架或铝管保持，利用迎面风吹鼓伞布，自然形成产生升力的翼面。20世纪50年代初期最早出现的伞翼机是用绳索把载荷系留在伞翼的下方，形如降落伞。但伞翼和降落伞的工作原理根本不同。伞翼的织物不应透气，以便具有与正常机翼类似的气动特性。伞翼机按有无动力装置分为伞翼滑翔机和动力伞翼机(即伞翼飞机)。伞翼飞机可用于低空农林作业、查线、探矿、水文测量、运动和娱乐。
