名词
中文翻译：火山灰
同义词：
['pyroxenite', 'trachyte']
例句：
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1.Volcanic eruptions are a natural occurrence that can cause significant environmental impacts.
火山喷发是一种自然现象，可能会造成重大的环境影响。
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2. The volcanic rock is rich in minerals and has been used for centuries in various industries.
这种火山岩富含矿物质，被用于多个世纪的各种工业中。
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3.The volcanic activity in this region is responsible for the unique landscape of the area.
该地区的火山活动造就了独特的地貌景观。