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- coast time hypersonic vehicle 高超声速飞行器
- Beijing Time is 16 hours ahead of West Coast Time in the United States or 13 hours ahead of Eastern Standard Time. 中国的时间比美国西海岸的时间提前十六小时，或者说比东部标准时间提前十三个小时。
- The SERN of a hypersonic vehicle was designed for improving the lift and propulsion force. 摘要为了提升高超声速飞行器单壁膨胀喷管的升力和推力，对其进行了优化设计。
- Air-breathing hypersonic vehicle(AHV) has been the next generation single stage to orbit vehicle and hypersonic cruise vehicle. 吸气式高超声速飞行器是下一代单级入轨和高超声速巡航研究的重点飞行器。
- He arrived for the transit stop at 3:40 p.m.Sunday U.S.West Coast time, after a flight of about 12 hours from Taipei, and left at about 7:30 a.m. 陈水扁自台北起飞经过约十二小时的飞行后，于美国西岸时间周日下午三点四十分到美国过境作短暂停留，并于周一上午七点三十分左右飞离，前往行程中的多米尼加共和国。
- In order to grasp the hypersonic vehicle models complex dynamic characteristics, a new hypersonic vehicle model method was proposed. 摘要为了掌握高超音速飞机复杂的动态特性，提出了一种研究高超音速飞机模型的新方法。
- The airframe and engine highly integration nature of hypersonic vehicle results in the asymmetry and cowl adjustable characters of the scramjet nozzle. 由于高超声速飞行器机体与发动机高度一体化的构型,使超燃冲压发动机尾喷管具有非对称,面罩可调等特点。
- The simulation studies demonstrate that the proposed method can ensure the longitudinal stability and improve the flight quality for hypersonic vehicle. 仿真研究表明，所提出的控制方法可以确保高超音速飞机的纵向稳定性，改善其飞行品质。
- The simulation studies show this research method adapts to the hypersonic vehicle models, and the simulation results are consistent with the desired demands. 仿真研究表明，该方法适合用在高超音速飞机模型上，仿真结果与期望要求相符合。
- The simulation demonstrates that the control system can provide the longitudinal stability performances and improve the manipulating qualities for the hypersonic vehicle. 仿真研究表明，该控制系统可以维持高超声速飞机的纵向稳定性能。
- An engineering method for calculating transient surface heat flux and surface temperature of hypersonic vehicle is described in this paper,including stagnation point and out of stagnation point. 采用工程算法,包括驻点和非驻点的瞬态表面热流和温度的计算以及完全气体和平衡气体条件下边界层外缘参数的计算。
- The 3-D flow numerical simulation of a hypersonic vehicle like X43-A was implemented, and the computational static pressure distribution on the undersurface was compared with the experimental data. 摘要对一种类似于X-43A飞行器的一体化构形进行了全三维数值仿真模拟，将前体下表面侧沿程静压分布的计算结果与实验结果进行了对比，二者吻合较好，表明数值模拟方法正确，结果可信。
- Departures form the ideal practice followed by the Wright have been particularly noticeable in the development of supersonic and hypersonic vehicles. 特别值得注意的是在发展超音速和高超音速飞行器的过程中，偏离了莱特理想的工作方式。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- For hypersonic vehicles,the effect of nozzle aerodynamic characteristics on vehicles performance is serious. 基于特征线法,并考虑变比热的影响,开展了高超声速飞行器用单膨胀斜面喷管设计。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- He died in a shipwreck off the south coast. 他在南部海岸一带的海难中死亡。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
