Most ships run on bunker fuel, which is cheaper than distillate, but more polluting.

大部分船舶使用的燃料是锅炉燃油，较蒸馏油便宜，但会带来更多的污染。

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And they could have moved to bring the huge, dirty market in bunker fuel for shipping and aviation, hitherto excluded from discussion of caps, into the negotiations.

他们本应对交易航海和航空石油燃料的大型市场采取行动。但这些至今仍被排除在讨论的核心问题之外。

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The Transpacific Stabilization Agreement bunker charge, a benchmark fuel surcharge imposed by shipping firms on sea freight, has risen from $455 per 40-foot equivalent unit in January 2007 to $1,130.

泛太平洋运价稳定协议组织的燃油附加费，一项船运公司在海上货物运输方面所使用的基准燃料额外收费，其每40英尺集装箱所相当的货物单位的费用已经从2007年1月的455美元上涨到1130美元。

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Another is the gritty bunker fuel burned by the many ships in a once-fragrant harbour.

ECONOMIST: An encouraging appointment addresses an enduring problem

Scores of oil-covered seabirds have died since an Asian freighter collided with the bay bridge and dumped 58, 000 gallons of thick bunker fuel.

NPR: California Oil Spill Could Affect Migrating Birds

Maersk say that despite the financial sweeteners from Singapore's Maritime and Port Authority the company is actually losing money by using low-sulfur fuel that can cost twice as much as ordinary bunker fuel.

CNN: Shipping looks to clean up its act