When the carrier gas is recirculated for reuse, surprisingly air is preferred as the source of such gas, especially for reactive hot DRI.
当载气被循环重新使用时，空气被意外地优选用作这种气源，特别是对于具有反应性的热的DRI。
When the carrier gas is recirculated for reuse, surprisingly air is preferred as the source of such gas, especially for reactive hot DRI.
当载气被循环重新使用时，空气被意外地优选用作这种气源，特别是对于具有反应性的热的DRI。
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