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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Of course, a rise in the spot price of oil triggered by a change in expectations about future prices will cause a decline in the current quantity of oil that consumers demand.

当然，由未来油价预期引发的现货油价上涨会促使当前石油需求量下降。

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

VOA: standard.2010.07.05

Spot oil prices have fallen sharply since mid-September (down 6%), taking the edge off the market somewhat.

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It means that we have an energy policy so that our economy is not subject to the whims of the spot oil market.

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Some of them aren't going to have that capacity, but maybe they can act as sentinels to spot oil, or maybe some of them are just shuttling supplies back and forth to these ships.

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