A natural brown earth containing ferric oxide and manganese oxides, used as pigment.
棕土含有红色氧化铁和氧化锰的天然棕色泥土，用作颜料
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。
a red oxide of iron.
一种红色的铁的氧化物。
clay whose redness results from iron oxide.
因含有氧化铁而呈红色的粘土。
a red soil containing ferric oxide; often used as a pigment.
一种含氧化铁、用作色素和颜料的红色土壤。
a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust.
一种红色、黄色或褐色的矿物，是铁锈的常见成份氧化铁。
a red pigment composed in part from ferric oxide which is often used in paints and cosmetics.
一种红色颜料，含氧化铁成分，用于制漆和化妆品。
the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water.
由于遇水而在铁上低温氧化而生成红褐色含铁化合物的过程。
a red to reddish brown mineral consisting of iron oxide hydroxide (FeO(HO)); often found in iron ores together with goethite.
一种红色至红褐色矿物，由铁的氢氧化物组成（FeO（HO）），常与针铁矿共生于铁矿中。
Any of several earthy mineral oxides of iron occurring in yellow, brown, or red and used as pigments.
赭土，赭石几种氧化铁矿物中的一种，呈黄色、棕色或红色，用作颜料
the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form.
铁矿的主要形式，由氧化铁组成，呈晶体状，以红色土状出现。
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。
Iron oxide red pigments
GB/T1863-1989氧化铁红颜料
Study on the Synthesis of Micaceous Iron Oxide Yellow Iron Oxide and Red Iron Oxide by Hydrothermal Method;
水热法合成云母氧化铁和氧化铁黄、铁红的研究
a red soil produced by rock decay; contains insoluble deposits of ferric and aluminum oxides.
一种因岩石腐烂而产生的红色土壤，含不能溶解的铁铝氧化物沉淀。
A dark red powdered variety of iron oxide, Fe2O3, used as an abrasive for polishing.
擦粉一种深红色的氧化铁细粉，Fe2O3，作为研磨剂用于抛光
STUDY ON THE COLOUR STABILITY AND ITS AFFECTING FACTORS OF RED IRON OXIDES IN CERAMICS
陶瓷坯体中氧化铁红的呈色稳定性及其影响因素的研究
Temperature Effect of the Rheological Behavior of LDPE/Fe_2O_3 Red Color Master
低密度聚乙烯/氧化铁红色母料流变行为的温度效应