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portland cement英英字典_portland cement剑桥英语解释_portland cement柯林斯英文解释_食材铺反向词典
食材铺反向词典

portland cement

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柯林斯词典

    Portland cement

  • 1. N a cement that hardens under water and is made by heating a slurry of clay and crushed chalk or limestone to clinker in a kiln 波特兰水泥

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