名词
中文翻译：灰烬结构
同义词：
['ash composition', 'ashes structure']
例句：
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1.The ash structure of the building is still intact after decades of use.
这座建筑的灰烬结构在几十年的使用后仍然完好无损。
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2. The ash structure of the ancient city walls was carefully preserved for preservation purposes.
为了保护的目的，古代城墙的灰烬结构被仔细地保存了下来。
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3. The study of ash structures has led to new insights into the behavior of volcanic eruptions.
对灰烬结构的研究表明，这有助于我们更好地理解火山喷发的行为。