The action of air on an airplane in flight at low altitude is greater than that at high altitude.
空气对于低空飞行飞机的作用力大于高空飞行的飞机。
A flight over a specific location, usually at low altitude, as by a formation of military aircraft.
低空编队飞行：在某特定地点上空飞行，通常在低空，如有军用飞机编队进行的。
It can be applied in the navigation system of the modern weapon which is flighting at low altitude.
该方案非常适用于现代武器低空飞行时的导航。
So, it can be applied in the navigation system of the modern weapon which is flighting at low altitude.
因此，该方案非常适用于现代武器低空飞行时的导航。
At that low altitude, this orbit will not last very long, and the satellite will reenter into the Earth's atmosphere.
在低空，轨道，无法维持太久，卫星会重新进入地球大气。
The incoherent wind lidar in ocean university of China is mainly used to detect wind field at low altitude (below 15km).
中国海洋大学非相干激光雷达主要用于探测低空（15公里以下）大气风场。
Things went horribly wrong for test pilot Ken Collins (flying under his Area 51 code name Ken Colmar) when testing the plane's subsonic engines at low altitude.
试飞员肯·柯林斯(他在51区的飞行代号为肯·科尔马)在低空测试飞机的亚音速发动机时遭遇了可怕的事故。
Whereas Abelia biflora population is strong at low altitude, Rhododendron micranthum population has stronger capacity of spatial occupation at high altitude.
低海拔山坡六道木种群空间占据能力较强，高海拔山坡照山白种群有较大的空间占据能力。
Due to the existence of radar blind spot, the invasive goals flying at low altitude and very low altitude will bring problems and threats to the defense radar system.
由于雷达探测存在盲区，低空与超低空飞行的入侵目标给雷达防御系统带来困难与威胁。
So, choose as far as possible to improve the nozzle of small high cutting speed and cutting quality is useful, but the nozzle at low altitude may cause double arc phenomenon.
所以，选用尽量小的喷嘴高度对提高切割速度和切割质量都是有益的，但是，喷嘴高度过低时可能会引起双弧现象。
The digital simulation results shows that the method can be used to provide the 3-D wind field at low altitude and is applicable for analyzing the dynamics characters of flights atl…
该方法可以提供低空三维风场模型，并能满足分析飞机低空飞行动力学特性的需要。
The phenomenon of regional synchronic contamination in North China plain is restricted by persistently steady zephyr at high altitude and various steady synoptic types at low altitude.
华北平原区域性同步污染现象受制于高空持续稳定的西风及低空各类稳定的天气型配置。
The propagation at low altitudes and the ADC noise in the RF direct sampling system taken are considered, and the main factors which affect the coverage of low altitude detection is analyzed.
考虑低空传播以及直接采样系统中adc器件的噪声，分析了低空探测时影响观测范围的主要因素。
The digital simulation results shows that the method can be used to provide the 3-D wind field at low altitude and is applicable for analyzing the dynamics characters of flights at low altitude.
该方法可以提供低空三维风场模型，并能满足分析飞机低空飞行动力学特性的需要。
They eitherejected at too low an altitude, hitting the ground before theirparachutes could open, or they went down with their planes.
他们要么因为弹射高度太低，降落伞没打开就已经坠地，要么就和飞机一道坠毁。
With this radar system and a specially trained Air Force crew the aircraft can operate at a low altitude and in night or adverse weather conditions.
有了这种雷达和经过特别训练的空军机组，飞机可以在很低的高度、夜间或不利的天气条件下飞行。
That is the theory, at least. So far, apart from some low-altitude test flights, the only stratospheric tests have involved a scaled-down version tethered to a weather balloon.
这些就是目前的原理，迄今为止，除了一些在低海拔的飞行测试，唯一的平流层测试是涉及一个按比例缩小拴在气象气球上的模型。
They either ejected at too low an altitude, hitting the ground before their parachutes could open, or they went down with their planes.
他们要么因为弹射高度太低，降落伞没打开就已经坠地，要么就和飞机一道坠毁。
The low-pollution plane to carry between 50 and 100 passengers will take off using normal engines powered by biofuel made from seaweed before switching on its rocket engines at altitude.
该低污染的飞机可以搭载50到100名乘客，起飞时飞机使用从海藻中提炼的生物燃料驱动的常规引擎，当爬升到特定高度时，飞机会切换到火箭引擎。
The car will also break the low-altitude air speed record and be the fastest manned vehicle at sea level in the world.
这辆车也将打破低空风速纪录，成为在世界海平面上最快的载人车辆。
USMC VH-60 Blackhawk flies through Toronto's financial district, hovering over Union Station at a very low altitude, between the skyscrapers at 1pm on June 23rd, 2010.
6月23日下午1点，一架美国海军陆战队的VH - 60黑鹰直升机穿越多伦多市金融区，低空悬停在摩天大楼环绕的联合车站上空。
At high altitude and low temperatures, water sometimes doesn't freeze. Instead, it hovers, but as soon as something solid — like a pitot tube — flies through it, the water flash-freezes to form ice.
在高海拔和低气温的环境下，水有时并不结冰，而是处于一种不稳定的状态，一旦有像皮托管那样的固体物质从中经过，水会附着在其表面闪冻成冰。
Aimed at the clutter overlap of PD system applied to the ground-based low altitude radar, a designing method of a different PRF with respect to each interval of scanning time was proposed.
针对地面低空雷达应用PD体制的杂波重叠问题，提出了分时分重频的设计方法。
This may be the low-atmosphere at high altitude effect the liver metabolism, and regulated the Thyroid Hormone by the body in order to adapt the plateau environment.
这可能是高原低气压，缺氧对肝脏代谢的影响，调节甲状腺激素，以求机体对高原坏境的适应。
The performance of turbocharged diesel engines at different high altitudes was studied on the engine test bed for simulating high altitude (low air pressure).
在内燃机高海拔(低气压)模拟试验台上，对不同模拟海拔高度下的涡轮增压柴油机性能进行了试验研究。
At low-layer wind direction is Northeast, wind speed decreased with the altitude.
低层吹东北风，随着高度增大，风速减小。
This paper mainly studies the distribution of the electron density produced by the high-altitude nuclear burst in atmosphere and gives part o the results at low-altitude.
本文主要研究高空核爆炸在大气中产生的电子密度分布，同时给出低空核爆的部分结果。
Objective: Explore the difference of incidence of related diseases of hypertension between people who migrated from high-altitude and who lived at low-altitude all the time.
目的：探讨高海拔移居低海拔人群与世居低海拔人群高血压相关疾病发生率的异同。
Objective: Explore the difference of incidence of related diseases of hypertension between people who migrated from high-altitude and who lived at low-altitude all the time.
目的：探讨高海拔移居低海拔人群与世居低海拔人群高血压相关疾病发生率的异同。
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