... coal-dust 煤尘 coal-dust brick 煤灰砖 Coal mine dust concentration transducer 煤矿用粉尘浓度传感器 ...
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The natural curing powdered coal-dust brick and its manufacturing method belong to building materials manufactured by use of industrial waste materials.
自然养护粉煤灰砖及其制造方法属于利用工业废料制造建筑用材料。
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