名词
中文翻译：Unknown
同义词：
['coal washing', 'coal washing process', 'coal cleaning']
例句：
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1. The coal washing plant is located in the city center.
煤炭洗选厂位于市中心。
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2. The coal washing process helps to remove impurities from the coal.
煤炭洗选过程有助于从煤炭中去除杂质。
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3.The coal washing plant employs advanced technology to improve the quality of the coal.
煤炭洗选厂采用先进技术来提高煤炭的质量。