铁的冶炼就是把氧化铁还原成金属铁。
The smelting of iron is a reduction of iron oxide to metallic iron.
铁是在一种叫做鼓风炉的大型设备里通过将氧化铁还原制得的。
Iron is made by reducing iron oxide in a large device called blast furnaces.
氧化铁是土壤中最为丰富的金属氧化物，在土壤的氧化还原反应和土壤形成过程中起着十分重要的作用。
Ferric oxide is the most abundant metal oxide, and it is very important in oxidization - reduction of soil and in soil-shaped process.
利用罐式法直接还原原理在试验室进行了氧化铁鳞制取直接还原铁的研究。
By retort mechanism of direct reduction, the preparation direct reduction iron with scale oxide is studied in the laboratory.
在这一循环中，随着氧化铁的硫化和氧化还原，活性组分充当了催化剂及载氧体的作用。
The desui-furizing and the regeneration of iron oxide form a catalyst cycle. In it the active component plays the role as catalyst and oxygen carrier.
目前研究表明氧化铁厌氧还原主要是微生物介导的异化还原过程。
Now some research said the process of iron oxide anaerobic reduction is mainly a microbial dissimilatory iron reduction.
水稻土中氧化铁的还原程度受土壤中不同电子供体和受体的制约。
The degree of iron reduction is restrained by the different electron acceptor and provider in the paddy slurry.
本文通过煤粉还原氧化铁试验，研究了催化剂对铁矿粉还原过程的催化效果及其影响因素。
The catalytic effect and influencing factors of coal-based iron ore direct reduction have been studied by experiments of iron oxide reduction.
以水稻土为供试样品，在厌氧培养条件下测定了不同土壤中氧化铁的还原状况，比较了不同氧化铁矿物的微生物还原能力。
Different paddy soils as tested samples, reduction status of difference soils was be determined under anaerobic incubation, and the ability of microbial iron reduction was be compared.
本文探讨了用纳米氧化铁粉末还原来制取微细铁粉的工艺。
Study on the Process of Fabricating Fine Stainless Steel Powder by Gas and Solid Dual-phase Atomization;
本文探讨了用纳米氧化铁粉末还原来制取微细铁粉的工艺。
Study on the Process of Fabricating Fine Stainless Steel Powder by Gas and Solid Dual-phase Atomization;
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