Methods to investigate the distributing scope of coal-burning area and to mensurate the content of fluorin and arsenic in coal and resident air of coal-burning room.
方法对使用石煤的分布范围进行调查，测定石煤及使用石煤户居室空气中的氟砷含量。
Methods to investigate the distributing scope of coal-burning area and to mensurate the content of fluorin and arsenic in coal and resident air of coal-burning room.
方法对使用石煤的分布范围进行调查，测定石煤及使用石煤户居室空气中的氟砷含量。
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