伯奈尔的模型暗示，如果含氧量降到15%，这情况会很难想象，因为火在那样的含氧量条件下是不能燃烧的。
This would be difficult to explain if oxygen levels fell below 15 per cent, as Berner's model suggests, because fires should not occur below this level.
中国艺术家刘伯林在北京的工作室中试用自己的雕塑作品“火人奥巴马”来暖手。
Chinese artist Liu Bolin warms his hands as his sculpture "Burning Man Obama" is tested at a workshop in Beijing.
中国艺术家刘伯林在北京的工作室中试用自己的雕塑作品“火人奥巴马”来暖手。
Chinese artist Liu Bolin warms his hands as his sculpture "Burning Man Obama" is tested at a workshop in Beijing.
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