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.

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对于任何想要自己网站火起来的小企业来说，有几个关键问题常被提到，需要重点考虑：如何在一定的开支下，提高网站的浏览量？

For any small business trying to thrive online, there are few questions more critical or often, confounding: How can we increase traffic to our business's Website on a budget?

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燃烧过程中有发泡膨胀现象，样品离火后迅速炭化自熄，无熔融、滴落现象，发烟量小，是一类较好的膨胀型阻燃剂。

The samples foam and expand during the combustion process, and they carbonize and extinguish right after being deviated from fire, without melting and dropping and with low smoking.

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