Traditional atmospheric correction methods are complicated in theory, difficult in practice owning to some parameters, especially field real-time atmospheric profile data, are seldom available.

传统的大气校正方法原理比较复杂，而且有些参数特别是实时的大气剖面资料难以获取。

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You know, we meet tonight at a moment of extraordinary challenge for this nation and for the world, but it's also a time of real hardship for the field of journalism.

你们知道，今晚我们聚会的这个时刻，我们国家和全世界正面对非比寻常的挑战，但它也是新闻界面对现实困难的时刻。

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To facilitate real-time coordination of response operations, WHO has despatched mobile communication field kits, which should greatly expedite the flow of information.

为促进应对工作的实时协调，世卫组织已调运移动通讯野外工具包，它们应可极大地加速信息的流通。

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You may have noticed Google's forecast feature on your HTML5-capable smartphone browser -- simply typing "weather" into the search field brings up a basic real-time temperature tool, complete with hourly and five-day forecasts for your current location.

ENGADGET: Google adds browser-based weather feature to tablets with temperature, wind and precipitation

In another example, Cognizant built an app for an insurance company enabling their field organization to provide real-time price quotes.

FORBES: Cognizant CFO: You Can't Cut Your Way To Top-Line Growth

But if it works, Army field commanders will be able to transmit real-time pictures of a battle to fighters in the sky.

FORBES: Magazine Article