The effects of moisture vaporization and organic matter pyrolysis on crown fire spreading are discussed, and the characteristic curves are obtained by numerical calculation.

通过数值分析，得到树冠火蔓延速度特性曲线，研究水份蒸发和有机物热解对树冠火蔓延速度的影响。

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And spreading the Saks name too widely could weaken its brand: crown jewels, even expensively garnered ones, can quickly lose their sparkle if they are not polished.

ECONOMIST: Retailing takeovers