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1. Oxford Dictionary

   iron oxide

   • n.
     an oxide of iron, in particular ferric oxide, a dark red solid which occurs as the mineral haematite and as the main component of rust

   • noun: iron oxide, plural noun: iron oxides

2. • 釋義

   n.

   名詞

   • 1. an oxide of iron, in particular ferric oxide, a dark red solid which occurs as the mineral haematite and as the main component of rust a thin layer of iron oxide forms quickly on iron that is exposed to air iron oxides are poor conductors of electricity