But critics say that "clean coal" is a pipe dream, an oxymoron in terms of the carbon emissions that count most toward climate change.

然而批评者说，“清洁煤”只是一种幻想，由于二氧化碳的排放是引起气候变化的关键，因此“清洁煤”是一个自相矛盾的概念。

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From inner to outside, the composite pipe consisted of alumina ceramic layer, metal transition layer, white cast layer, carbon atom diffusion layer and nodular cast iron layer.

复合管从里到外由氧化铝陶瓷层、金属过渡层、白口铸铁层、碳原子扩散层、球墨铸铁层组成。

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The result is that unburned gasoline or carbon monoxide come out the tail pipe.

结果，排气尾管即排出了尚未燃烧的汽油及一氧化碳。

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They should get out and clear space around the vehicle's exhaust pipe to prevent the possibility of carbon monoxide poisoning.

VOA: special.2011.01.11

The 41-year-old carbon steal pipe was inspected by an Enbridge contractor for rust in 2004 and cracks in 2005.

CNN: STORY HIGHLIGHTS

Because producing a requisite amount of electricity from gas results in estimate about 50% of the carbon dioxide for the same coal-based electricity, the only way to meet the proposed standard is to capture the outgoing carbon dioxide, pipe it somewhere, and bury it.

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If a government-mandated market for pollution offsets ever materializes, the 26-inch pipe hauling away carbon would be able to handle the plant's waste gas and another 5 million tons from other sources in New Jersey.

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