他们可能看到了气象气球或飞机。
它在对云层、降水、冰雹和雷暴的气象探测以及在船舰和飞机的导航中，起着日益重要的作用。
It plays an increasingly important part in meteorology for cloud, precipitation, hail and thunderstorm detection as well as the navigation of aircraft and ships.
现在，气象局还有一个“应急飞机”用于火山灰的研究，可以在需要的时候随时获取数据。
The Met Office also now has a "contingency aircraft" kitted out for ash studies that can gather data whenever it may be needed.
现在，气象局还有一个“应急飞机”用于火山灰的研究，可以在需要的时候随时获取数据。
The Met Office also now has a “contingency aircraft” kitted out for ash studies that can gather data whenever it may be needed.
头脑冷静的气象学家很快把这件事搁置起来：认为它只是一种光的幻觉，起因于阳光击中了一朵云彩，刚好能以一种合适的方式被风或飞机交通而使人感到不安。
Cool-headed meteorologists were quick to put the story to bed: it was just an optical illusion, the cause of sunlight hitting a cloud disturbed by wind or plane traffic in just the right way.
其间可能涉及到略去一些偏差较大的实验数据，亦或，热源(比如说飞机场)靠近气象站时，实验结果的输入就比实际数据要低一些。
It might involve omitting especially awkward readings; or where, for example, a heat source like an airport has sprung up alongside a weather station, inputting a lower temperature than the data show.
据奥地利钻石飞行器公司介绍，他们的涡轮飞机燃烧温度低，此外还加装了空气过滤器，因此在恶劣的气象条件下不会出现那些安全问题。
But Diamond's turbo-charged aircraft does not have problems under such conditions due to low combustion temperatures and air filters, Austrian company Diamond Aircraft said.
英国气象局(MetOffice)负责发布冰岛火山灰对飞机构成威胁的气象报告；它使用切尔诺贝利核灾难事故后建成的模型预测火山灰的运动。
Britain's Met Office, which is responsible for advisories on risks to aircraft from Icelandic ash, predicts the movement of ash clouds with a model built after the Chernobyl disaster.
伦敦气象中心的Barry Gromett说，这架飞机经过的区域被称作热带辐合带。
Barry Gromett, a meteorologist at the London Weather Centre, said that the aircraft was passing through an area known as the Intertropical Convergence Zone.
新型电子飞行工具包使波音777飞机能够传输日常飞行数据，包括飞行计划和气象信息，直接将数据传送到飞机的电子飞行包（EFB）。
The addition enables transmission of day-of-flight data, including flight plans and weather information, directly to the airplane’s electronic flight bag (EFB).
寻找适合进行人工干预的气象条件，然后喷洒化学药品，大约需要出动8至10架飞机。 大气中并非所有的水蒸汽都能转化为降雨，至于降雪，水蒸汽首先应该形成冰晶。
Not all water vapour in the atmosphere turns to precipitation, and for the snow to fall, water vapour should concentrate on ice crystals first.
文中分析了与飞机积冰有关的气象因子和天气形势，并提出了一些飞机积冰的预报方法。
In the paper, the meteorological factors and weather situations related to aircraft icing are analyzed, and some forecast methods are presented.
富士通希望该新型超级计算机能应用到地震防灾、气象分析、新药开发、飞机及汽车开发等领域。
Fujitsu hope the new super computer can be applied to earthquake disaster prevention, meteorological analysis, new drug development, aircraft and automobile development in areas such as.
这架飞机给孤单的南极洲气象站空投了邮件及补给品。
The plane made a mail and supply drop to the lonely weather station in Antarctica .
这些飞机在62个国家炎热、寒冷的气候中、以及各种不利的气象条件下全天候工作。
These aeroplanes are being operated in 62 countries under hot and cold climates, adverse weather conditions all-around-the clock.
借助于“气象科研数据共享平台”，“飞机探测云物理数据集”产品已在一定范围内得到广泛应用。
By means of the share platform for meteorological scientific research data, the product of the aero-detection cloud physics dataset was applied within a certain region.
本文分析了世界气象组织于1981年在西班牙进行的增雨计划试验中法国飞机取得的云微物理资料。
The measurements taken by aircraft Piper-Aztec of France during the experiment of the Precipitation Enhancement Project organized by the WMO in Spain in 1981 have been analysed.
提出了一种适用于各种结冰气象条件下飞机机翼结冰过程的数值模拟方法。
A numerical simulation approach is presented to simulate the ice accretion on airfoil which can deal with the ice accretion under various atmospheric conditions.
利用飞机平台的高度机动性可以实现对气象系统近距离、高精度的三维实时观测。
Because of the high flexibility of airborne platform, the 3-d real-time observation of weather systems can be realized in a close range and high precision.
今天在美国无人驾驶飞机的使用仍然有限，以执法，边境巡逻，消防，气象，科研。
Today's usage of drones in the U. S. remains limited to the law enforcement, border patrol, firefighting and weather or scientific research.
机载脉冲多普勒气象雷达则能够用清晰的图像实时显示出飞机前方的气象状况，并及时将极端天气的报警信息提供给飞行员，以提前躲避危险。
Airborne pulse doppler weather radar could display clear colorized weather image dynamically on its screen and give pilots alarm about the extreme weather area to avoid risk betimes.
利用机场实时的多普勒气象雷达和地面自动观测资料定量计算出风切变的大小，从而确定风切变和飞机颠簸的强度等级。
The real-time wind data from local terminal Doppler radar and auto weather observation stations were calculated to obtain the degree of wind shear and turbulence.
利用机场实时的多普勒气象雷达和地面自动观测资料定量计算出风切变的大小，从而确定风切变和飞机颠簸的强度等级。
The real-time wind data from local terminal Doppler radar and auto weather observation stations were calculated to obtain the degree of wind shear and turbulence.
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