... 高级码 advanced code 高级煤 high grade coal; high rank coal; high-quality coal; high-rank coal; premium coal 高级醚 higher ether ...
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Tete, in Mozambique, sits above one of the world's largest reserves of high-quality coal.
莫桑比克的太特是世界上最大的高质量煤矿之一。
It produces 4m tonnes of high-quality coal a year, using the latest British and German machinery.
它年产4百万吨优质煤,使用最新的英国和德国产机械设备。
I sales of high-quality coal is suitable for heating and industrial production of civilian ideal source of energy.
我处销售的优质原煤是适合民用取暖以及工业生产的理想能源来源。
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