jiāo tàn
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  • n.coke

    • fā zhǎn jiāo tàn huà xué gōng yè

      发展焦炭化学工业

      develop coke chemical industry

    • jiāo tàn lú

      焦炭

      coke furnace

    • shǐ yòng jiāo tàn shēng tiě

      使用焦炭生铁

      use coke pig iron