I have seen one of the conventional steelworks: huge blast furnace, converter, steel ingot, miles of railway track.

 
  • 我參觀(guān)過(guò)傳統的煉鋼廠(chǎng):巨大的高爐、轉爐、鋼錠,長(cháng)達幾英里的鐵軌。
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