red ocher是什么意思 red ocher怎么读
red ocher的用法和样例
- Because it reacts easily with oxygen in the air to produce crumbly red iron oxides.
因为它非常容易和空气中的氧气起反应,生成易碎的红色氧化铁。 - In other words, iron has a strong tendency to rust if exposed to air and damp, for iron and oxygen make rust, or red oxide of iron.
换言之,铁如果接触空气和湿气特别容易生锈,因为铁与氧化合成锈或红色的氧化铁。
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