个人飞行的梦想在许多发明家的脑海中仍然鲜活生动，一些人开发循环动力飞行器，另一些人则往喷气背包上大量投入资金。
The dream of personalised flight is still vivid in the minds of many inventors, some developing cycle-powered craft, others pouring money into jetpacks.
一旦幼鸟成熟，类似这样的可控降落就会演变成为动力飞行。
As the young bird matures, such controlled descent gradually gives way to powered flight.
在白天爬升，原型机最终达到海拔30000米的高度，打破了非火箭动力飞行的高度纪录。
Climbing during daylight hours, the prototype aircraft ultimately reached an altitude just short of 30, 000 meters, breaking records for non-rocket powered flight.
太阳脉冲号起飞后，利用遍布机翼上表面和水平安定面的11,628块太阳能电池所提供的动力飞行。
The idea is that solar Impulse will take off and fly under its own power using electricity from the 11, 628 solar cells covering the upper surfaces of its wings and tailplane.
介绍了将DMC - PID串级控制技术应用到无人机无动力飞行时的自动着陆阶段迎角自动控制系统。
DMC-PID bunches control technology in the Angle of attack automatic control system during unpowered flying automatic landing period is introduced.
不久前，一个德国大学学生团队宣布他们研发出来一种小的能量空气动力飞行器，它能能从轨道的传导途径中汲取。
Not long ago, a team of German university students announced that they had created a small aerodynamic vehicle that draws power from conducting paths on a track.
在动力飞行，那些最早的日子，这么多尚未被证明是对飞机的技术和处理，几乎所有的驾驶员是各种各样的试飞员。
In those earliest days of powered flight, when so much had yet to be proven about aircraft technology and handling, almost any pilot was a test pilot of sorts.
他说：“即使对具象派的艺术作品做一个粗略的检查，也足够找到证据，证明天使和胖乎乎的小天使无法起飞，也无法使用动力飞行的方法。
“Even a cursory examination of the evidence in representational arts shows that angels and cherubs cannot take off and cannot use powered flight, ” said Prof Wotton.
他说：“即使对具象派的艺术作品做一个粗略的检查，也足够找到证据，证明天使和胖乎乎的小天使无法起飞，也无法使用动力飞行的方法。”
"Even a cursory examination of the evidence in representational arts shows that angels and cherubs cannot take off and cannot use powered flight," said Prof Wotton.
他说：“即使对具象派的艺术作品做一个粗略的检查，也足够找到证据，证明天使和胖乎乎的小天使无法起飞，也无法使用动力飞行的方法。”
Even a cursory examination of the evidence in representational arts shows that angels and cherubs cannot take off and cannot use powered flight, "said Prof Wotton."
战神一号X型将上升到约40公里(约25英里)的高空，在其动力飞行阶段，将不间断地对其运载空气动力学指标、火箭的第一阶段的控制和表现进行测量。
The 1-x will climb about 40km (25 miles) into the sky during the powered phase of its flight, continuously measuring vehicle aerodynamics, controls and performance of the rocket's first stage.
这次测试开始于2007年6月，在飞行测试中，使用了F-16战斗机和B-52轰炸机作为载机，对MALD进行了各种飞行轨迹的测试，包括抛射和动力飞行测试。
The testing, which began in June 2007, put the MALD through a series of flight profiles including jettison and powered flight tests from both F-16 and B-52 aircraft.
行星科学家艾伦·斯特恩认为，国际空间站最大的公关推动力可能来自私人资助的太空飞行业。
According to Alan Stern, planetary scientist, the biggest public relations boost for the ISS may come from the privately funded space flight industry.
对起飞和安静飞行要求更少动力的引擎。
Engines that require less power on takeoff, for quieter flight.
它是拥有一个记录器独立电源供应的第一个飞行记录器，在动力供应失败的情况下也可操作。
It is the first flight recorder to have a recorder-independent power supply which allows operation in the event of a power failure.
这是一个由软木和竹子做成的飞行玩具，它的身体是用纸做的，动力由一个橡皮筋提供。
It was a flying toy made of cork and bamboo. The body was made of paper and the power was supplied by a rubber band.
从那以后，载人飞行的动力就消失了。
这个比例也意味着一架无动力悬挂式滑翔机以恒定速率飞行时高度每下降1米，可以向前滑翔15米。
This ratio also means that an unpowered hang-glider flying at a constant speed moves 15 metres forward for every one metre it descends.
然而，通过自由落体测试，研究者可以量化的测量翅果的飞行动力并且用得到的信息数据来控制翅果的自旋和飞行轨迹。
However, through free-fall testing, the researchers could quantitatively measure the samara's flight dynamics and use this information to control the samara's autorotation and flight path.
“胸肌担负了飞行中80%的动力来源，”托巴尔斯克博士说，这也解释了为什么在鸟类解剖形态中，胸肌所占的比重最大。
“Pectorals are the motor for 80 percent of flight,” said Dr. Tobalske, which explains why they are the largest part of the anatomy.
美国航空航天局戈达德太空飞行中心太阳动力观测卫星的项目科学家，瓦特·迪恩派斯奈尔这样说。
Dean Pesnell, project scientist for the Solar Dynamics Observatory at NASA's Goddard Space Flight Center.
它显示出一种环球飞行的幻想。在清晨和下午有强力的推动力，让他能跟随太阳旋转。
And it gave the illusion of flying round the world since, with a couple of hefty shoves morning and afternoon, it could be made to revolve and follow the sun.
图片说明：这是太阳能为动力的飞行，国家航空航天局（NASA）的太阳神号出现在莱特兄弟的历史性飞行（1903年12月17日）大约100年后。
Explanation: An example of solar-powered flight, NASA's Helios aircraft flew almost one hundred years after the Wright brothers' historic flight on December 17, 1903.
1903年12月17日，莱特兄弟驾驶自己制造的第一架飞机“飞行者1号”，在美国北卡罗莱纳州的基蒂霍克海滩，进行了首次有动力驱动的持续飞行。
On December 17, 1903, the Wright Brothers embarked on the first sustained, heavier-than-air, man-powered flight aboard the Wright Flyer.
通过更加符合空气动力学的形状和一个曲线尾巴的飞机结构，这些发动机将使飞行更有效率，同时会将绝大部分的噪音传向空气上方。
With a more aerodynamic shape and framed by a curved tail plane, these engines would make for a more streamlined aircraft, as well as directing most of their noise upward.
她会问起你火星上的太空殖民，飞行汽车，核动力超速飞机，和人造器官。
She'd ask about space colonies on Mars, flying cars, superfast nuclear-powered airplanes, artificial organs.
这是第一架携载了一名飞行员和充足电池储量以提供夜间飞行动力的太阳能飞机。
It is the first solar-powered plane to carry both a pilot and enough battery storage to power flight through the night.
由于“团队之星”独特的空气动力学设计，导致飞行的球在空中缺乏旋转，这种设计遭到了很多门将的诟病，他们认为这样的球飞行路径过于飘忽，难以判断。
While the Teamgeist ball was great for strikers, many goal keepers complained that the ball's aerodynamics created a lack of rotation in the air, making its path at times erratic, like a knuckleball.
由于“团队之星”独特的空气动力学设计，导致飞行的球在空中缺乏旋转，这种设计遭到了很多门将的诟病，他们认为这样的球飞行路径过于飘忽，难以判断。
While the Teamgeist ball was great for strikers, many goal keepers complained that the ball's aerodynamics created a lack of rotation in the air, making its path at times erratic, like a knuckleball.
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