Currently, intermediate-temperature solid oxide fuel cell (IT-SOFC) is the focus of global investigation.

目前，中温固体氧化物燃料电池是世界各国研究的重点。

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So we'll have an iron oxide species. It's a solid.

那么我们有氧化铁，它是固体。

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So we'll have an iron oxide species. It's a solid.

那么我们有氧化铁，它是固体。

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