Not using Oil or Waste as pumping medium, low operation cost.

工作方式不使用油或水，大幅降低操作成本。

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"Do you know what the price of oil will be in five years if they're not using electric cars?" Agassi asks.

阿加西问道：“如果他们不用电动汽车，你知道五年后石油的价格将是多少吗？”

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The oil is considered "technically recoverable" using existing technology, but the USGS did not consider the cost of overcoming obstacles to drilling, such as permanent sea ice or deep waters.

从技术层面上来讲，利用现有的技术是可以开发（北极的）石油的，但是美国地质调查局并没有考虑为克服开采困难而产生的成本，如永久海冰以及海洋深水。

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Using new vegetable oil -- not the used stuff from restaurants -- raises similar scarcity questions.

CNN: Can vegetable-oil cars save the world?

But much of that dip appears to be the result of microbes using oxygen to dissolve oil underwater, and the decline is not enough to be fatal to marine life, said National Oceanic and Atmospheric Administration official Steve Murawski, the head the Joint Analysis Group studying the spill's impact.

CNN: No signs of 'dead zone' in Gulf, feds say

Refiners churn out the same end products (gasoline, heating oil, distillates, etc.) using either feedstock, but not all refiners have the equipment to process heavy sour crude.

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