低級煤
詞語: 低級煤
解釋: lean coal
詞典: 建築專業漢英詞典
低級煤 相關解釋
lean coal 〔名詞〕瘦煤,短焰煤
lean coal 〔名詞〕低級煤,瘦煤,短焰煤
低級煤 grizzle
低級煤 grizzle;low-grade coal
低級煤 inferior coal;lean coal;low rank coal;low-grade coal;poor grade coal
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