名词
中文翻译：富集区
同义词：
['enriched zone', 'enriched region', 'enriched area']
例句：
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1. The coal mine is located in a rich enrichment zone.
煤矿位于一个富集带。
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2. The study found that the enrichment zone had a significant impact on the environment.
研究发现，富集带对环境产生了重大影响。
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3. The research team focused on studying the natural enrichment zones in the region.
研究团队专注于研究该地区的天然富集带。