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認識 - WordPress.com · Web view到了1990年代技術進步,製造1公噸的生鐵只需1公噸的煤和1.5公噸的鐵砂,大幅降低原料的運輸成本。同時,許多新設的鋼鐵工廠大量使用廢鐵,導致工廠多設於市場附近。而鋼鐵工業又是許多工業的重要原料來源,其分布的
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