And that's because shipping has very tight margins, and they want cheap fuel, so they use something called bunker fuel, which was described to me by someone in the tanker industry as the dregs of the refinery, or just one step up from asphalt.
那是因为海运的利润非常小， 而他们需要便宜的燃料， 那是因为海运的利润非常小， 而他们需要便宜的燃料， 所以他们用一种船用燃料， 一位油轮行业的人告诉我， 那是炼油厂的糟粕， 跟沥青几乎相差无几了。