在飞行中

Flight simulator is one of the most important devices for real-time hardware-in-loop simulation of flight control systems.

飞行仿真转台作为航空、航天等领域中进行半实物仿真和测试的关键设备，在飞行器的研制过程中起着极其重要的作用。

Based on matrix disterbance theory, a new numerical calculation method to determine system observability of each state through system observability matrix sin gular value decomposition is proposed. This method is applied in flight trans fer alignment and integrated navigation filter design successfully.

提出了应用系统观测矩阵奇异值分解确定滤波器中各状态变量可观性强弱的一种方法，并在系统的飞行传递对准和组合导航滤波器的设计中得到了成功的应用。

The gunship is one of important weapons in modern war, and it acts an importance for the modern war. But it is threatened badly by the ground weapons. Therefore, it is extremely important for the defend armor of gunship to increase its bullet penetrability resistance.

武装直升飞机在现代战争中起着重要的作用，是现代常规战争中的重要武器之一，但其也受到地面武器的严重威胁，提高武装直升飞机防护装甲的抗弹穿透能力，对武装直升飞机本身的飞行安全也是至关重要的。

An unidentified plant mentioned in the bible as the source of twigs used for sprinkling in certain Hebraic purificatory rites.

一种不知名的植物，在《圣经》中作为希伯来某些斋戒仪式中使用的树枝被提及来历不明的飞行物，飞碟

In updrafts, the authors claim, they fly just enough to counterbalance gravity. In downdrafts, they stop flapping and sink.

在上升气流中飞行，他们利用拍翅抵消重力的作用；而在下沉气流中，他们停止拍打翅，保持下沉。

When the first universe fleet, looks like nebulas to be same, has flown rapidly Moon's time, in the pure white lunar terrain, appeared suddenly one each one appeared in motion in turn the huge V glyph phantom, these all were Huang Qu senior official yellow Jinlong and the black area senior official black must win, together the careful formulation flying route and the formation lineup, by this to the entire Earth expressed final had to win the determination and the faith, because of except the sun, the Moon was in the human naked eye only the biggest star, crowdedly only then possibly completed the so wonderful peerless magnificent feat with quantity huge interspace formation!

当第一宇宙舰队，像一片星云一样，急速飞过月球的时候，在洁白的月球表面，突然出现了一个个依次出现移动中的巨大 V 字形影像，这些都是黄区长官黄金龙和黑区长官黑必胜，共同精心制定的飞行路线和编队阵形，以此向整个地球表示最后的必胜决心和信念，因为除了太阳，月球是人类肉眼中唯一最大的星球，密集与数量巨大的星际编队才可能完成如此美妙绝伦的壮举！

In summary, the work in this dissertation has solved several hard problems (including low compression rate, bad compression quality, and moderate coding efficiency, etc. under the condition of low band-width) of image compression coding in the data link of flighting control of cruise missiles, and provides a foundation for transferring high quality images instantly in man-in-the-loop control of the cruise missile.

总之，本文的研究工作在一定程度上解决了面向巡航导弹飞行控制数据链的图像压缩编码技术中存在的低带宽条件下，压缩率低，压缩质量差，编码效率不高等难题，为实现巡航导弹人在回路控制中实时的、高质量的图像压缩编码奠定了技术基础。

To overcome the bad effect resulting from the nonlinearity time-variability and uncertainty on autopilot system performance during the motion process of aerodynamics missile, and to further improve the flight quality of missile, the autopilot system and used control method are researched. Firstly the integrant structure of system is discussed; then baaed un introducing the traditional PID method, controllers for missile attitude motion are designed respectively using fuzzy self-turning PID method and neural network self-adaptive PID method; at last a simulation experiment is finished. By comparing the simulation results that the designed controllers have good qualities is showed, and the feasibility and validity of applying fuzzy control and neural network into automatic control of aerodynamics missile is confirmed, and the base that other nonlinear control theory can be combined with the traditional control for missile to further improve the performance of missile control system is established.

为了克服飞航导弹运动过程中的非线性、时变性和不确定性对自动驾驶仪系统性能的不良影响，进一步提高导弹的飞行质量，对自动驾驶仪系统及其采用的控制方案进行了研究；首先对系统的整体结构进行了分析，然后在介绍经典PID方案的基础上，分别采用模糊自调整PID方案和神经网络自适应PID方案设计了导弹姿态运动控制器，最后进行了仿真实验；仿真结果的对比展示了所设计控制器良好的品质，验证了将模糊控制和神经网络应用于飞航导弹自动控制中的可行性和有效性，为其它非线性控制理论与导弹传统控制相结合以进一步提高导弹控制系统的性能奠定了基础。

Although his worst accident was man-made, messing up a training jump, he had several hair-raising brushes with nature: tumbling down a glacier on the Eiger, crash-landing in a tree in India and, on his fourth balloon attempt, plunging five miles into the Coral Sea with the canopy on fire.

虽然他最差的一次事故是人为造成的---在一次试跳中搞砸了，但他有几次令人恐惧的&和自然擦肩而过的&历险：在艾尔格峰上翻进了一条冰河里，在印度，飞机撞在了一颗树上，还有，在第四次气球飞行时，带着燃烧的盖蓬，从5英里高的地方直接掉进了珊瑚海里。

The new Japanese first lady has made headlines in the past for tales of her alien encounters: in a book published last year, she wrote about an extraterrestrial experience some 20 years ago when she said her soul rode on a triangular-shaped UFO and went to Venus while her body was asleep.

这位新科日本第一夫人曾因其遭遇外星人的故事而登上过报纸头条：在去年出版的一本书中，她提及了一段20多年以前与地外文明接触的经历，她描述说在她熟睡的时候她的灵魂被带离了身体，进入到一个三角状的不明飞行物中并前往了金星。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。