With the development of research, it's found that if we know the exposed surface of the fuel, we can better assess the heat release rate and duration time of burning.

在火灾载荷研究中包括可燃物暴露表面的研究，能更好的估算轰燃发生后可燃物燃烧的速率和时间。

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Each episode would last the duration of a burning joss stick .

每一章节都会持续一炷香的时间。

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