And that gas reduces the iron oxide to iron.

这种气体让氧化铁转化为铁。

The oxygen out of the iron oxide comes off as oxygen gas.

氧化铁中的氧会以氧气的形式逸出。

Iron oxide is another form of what we call rust, which is why the sand gets that orangey reddish tan tint.

氧化铁是铁锈的另一种形式，这就是为什么沙子会呈现发橘红的棕褐色的原因。

Ochre refers to any rock rich in iron oxide that yields red, yellow, or brown pigments.

赭石是指任何富含氧化铁的岩石，能产生红色、黄色或棕色颜料。

Scientific analysis reveals that the colors were derived from ocher and other iron oxides ground into a fine powder.

科学分析显示，赭土和其它氧化铁会形成细小粉末。

So, when exposed to oxygen either in air or water the iron rusts and becomes iron oxide.

所以当暴露在氧气里时，无论是在空气中还是水中，铁会生锈并且变成氧化铁。

But scientists working on a way to harvest oxygen from the iron oxide in lunar soil

然而科学家们正致力于研究一种从月球土壤中的氧化铁里获得氧气的方法。

And by the passage of electric current the iron oxide is decomposed, and it produces liquid iron.

然后电流通过，氧化物分解并产生液态铁。

Rust, or iron oxide, is a red coloured chemical that occurs when metals react with water and air.

铁锈，或氧化铁，是当金属与水和空气反应时产生的一种红色化学物质。

The scientists covered tiny particles of tungsten oxide with iron oxide to mimic the way moth eyes gather light.

科学家仿造飞蛾眼睛的结构，用氧化铁盖住二氧化钨上的细小微粒。

Then, little by little, manganese and iron oxides attach to this debris just like they attach to exposed rock.

然后，锰和铁的氧化物逐渐附着在这些碎片上，就像它们附着在裸露的岩石上一样。

The brick battery relies on the reddish pigment known as iron oxide, or rust, that gives red bricks their color.

砖电池依赖于红色颜料氧化铁，或铁锈，这种颜料赋予了红砖颜色。

The scientists pumped the bricks with several gases that react with iron oxide to produce a network of plastic fibers.

科学家向砖块中注入几种气体，使其与氧化铁发生反应，生成塑料纤维网。

It's titanium dioxide, iron oxide red, iron oxide yellow, and iron oxide black.

它是二氧化钛、氧化铁红、氧化铁黄和氧化铁黑。

It looks red because of rust – iron oxide on the surface, which is red and, interestingly that look can change.

它看起来呈红色是是因为铁锈——表面上的氧化铁，它是红色的，有趣的是，它的外观可以改变。

Number five, iron oxide spherule. Number six, iron oxide spherule.

第五， 氧化铁球体。第六， 氧化铁球体。

The new method involves passing a current through a molten pool of iron oxide, which drives off the originally sought-after oxygen.

新方法的步骤则包括向熔炉里的氧化铁通电，从而释放原本就炙手可热的氧气。

Then the whole thing was polished using a powdered iron oxide mixed with water, probably buffed up with a chamois leather.

接下来用一种氧化铁和水混合液体来抛光打磨整件物品，极可能是拿着块麂皮来弄的。

White sand beaches are also mostly made of quartz, but the sand heads hasn't been tinted by iron oxide for feldspar.

白色的沙滩也大多是用石英构成的，但长石并没有被氧化铁染色。

So, number two is an iron oxide spherule.

所以， 第二个是氧化铁球体。