Although hydrocarbons have long been known to fluoresce, or glow, under ultraviolet light, this may be the first time the technology has been used outside a lab to spot oil.

很久以来人们就知道烃类在紫外线下能发出荧光或其他光亮，但这或许是第一次在实验室外，应用这一技术来探测石油。

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Oil slicks are notoriously difficult to spot in natural-color (photo-like) satellite imagery because a thin sheen of oil only slightly darkens the already dark blue background of the ocean.

浮油出名的难以被发现在天然色卫星图像上，因为稀薄光泽的石油仅仅略黑于深蓝色的大海。

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The Americans have long pursued an "oil-spot" strategy-establishing areas of stability that would, with time, expand.

美国长久以来奉行“油点(oil - spot)”战略，即确立稳定与时相展的地区。

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They also use radar to help spot oil just below the water's surface.

VOA: standard.2010.07.05

On Tuesday Global X launched a new equity exchange-traded fund that attempts to achieve high correlation to crude oil spot prices.

FORBES: Two New Oil And Gold ETFs To Watch

Both strategies will not perfectly track the crude oil spot index regardless.

FORBES: Three Ways To Gain Exposure To Oil

She sometimes sprays a few spritzes of scent onto her throw pillows. (It's a good idea to test the spray on the back of the pillow to ensure it doesn't leave an oil spot.) She spritzes just the edges of a pillow, not the center, where people may rest their heads.

WSJ: Tricks of the Trade: A Well-Scented Home