研究员、曾任中国建筑科学研究院总工程师、副院长。

Researcher, once worked as the Chief Engineer and Vice-principal of China Academy of Building Research.

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“桂林自唐代以来就一直是大都市，它有保存最完好的明代建筑，”广西大学旅游科学研究所(现为广西西大旅游科学研究院——译注)创建人杨永德说道。

"Guilin has been a metropolis since the Tang dynasty and has the best preserved Ming dynasty houses," said Yang Yongde, founder of the Tourism Research Institute at Guangxi University.

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而固体可燃物表面火蔓延是森林火灾、建筑火灾以及工业火灾中普遍存在的燃烧现象，是火灾科学研究的一个基础问题。

Exploring the characteristics of flame spread over the surface of solid combustibles and building the theoretical models of fire spread are the self-demand of fire science development.

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