Ferrous oxide, is one of iron oxide.
氧化亚铁，是铁的氧化物之一。
The preparation methods of iron based products were discussed, such as ferrous or ferric salts, iron oxide pigments, magnetic particles and iron powders.
论述了硫铁矿烧渣湿法制备铁盐，铁氧化物颜料，铁基磁粉以及铁粉等铁系产品的原理，并对铁系产品的途径进行了分析。
Some growtk conditions of transparent iron oxide pigment in the solution of ferrous sulphate with NaOH and NH_4HCO_3 as precipitant were investigated.
对硫酸亚铁溶液用氢氧化钠和碳酸氢铵为沉定剂生成透明氧化铁颜料的条件进行了初步研究。
Answer: the ferrous oxide iron quality score than big.
答：氧化亚铁含铁质量分数比大。
Answer: the ferrous oxide iron quality score than big.
答：氧化亚铁含铁质量分数比大。
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