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    2025-08-05
  • “steel mill”的英英意思

    “steel mill”的英英意思

    单词 steel mill 释义 steel mill†1. A device for producing a stream of sparks by the rapid revolution of a steel disc in contact with a flint; used for light in coal-mines before the invention of the safety-lamp. Obs.1772Pennant Tour Scot. (1774) 49 The...

    2025-08-05