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

科学分析表明，这些颜色是源自赭石和其他铁氧化物磨成的细粉。

A mixture of uranium oxides.

即各种铀氧化物的混合物。

These natural cosmetics rely on oxides for color.

这些天然的化妆品是靠氧化物来获得颜色。

Carbon combines with oxygen to form carbon oxides.

碳与氧化合后便构成碳氧化合物。

Carbon combines with oxygen to form carbon oxides.

碳同氧化合形成多种氧化碳。

Burning may produce carbon monoxide, carbon dioxide, and nitrogen oxides.

燃烧时会产生一氧化碳、二氧化碳和氮氧化物。

Existing technology can remove nitrogen oxides when fossil fuels burn, at a cost.

对于矿物燃料燃烧时氮氧化物的清除，在科技上和成本上都是可行的。

Electric power plants that burn fossil fuels release hydrocarbons and nitrogen oxides.

通过燃烧矿物发电的火力发电厂会释放碳氢化合物和氮氧化物。

"Nitrogen oxides in particular are of concern," he says, because they can destroy ozone.

他说，“尤其要注意氮氧化物”，因为它们可以破坏臭氧层。

These oxides are released into the atmosphere and they can fall back to earth as acid rain.

这些氧化物会被排进大气，然后会以酸雨的形式降回地面。

The major factors which influence sealing quality of aluminium oxides are investigated.

对影响氧化膜封闭质量的主要因素进行试验。

Methane and nitrous oxides produced by agriculture account for about 10% of man-made warming.

农业产生的甲烷与一氧化二氮，在人为导致的全球变暖[因素]中，占了约10%。

The MudWatt creates energy by capturing electrons released when mud-borne bacteria eat metal oxides.

MudWatt电池通过捕获土壤细菌啮食金属氧化物时释放出来的电子产生能量。

A very high excess of oxygen, methane, and nitrous oxides would certainly be suggestive of life.

充足的氧气，甲烷和氧化二氮当然可能预示着生命。

Until now, the quotas mostly covered alloys and oxides with a rare earth content of at least 50 percent.

直到今天，稀土资源出口配额大部分涵盖了至少50%的稀土合金和氧化物。

From 2012 diesel trains will have to reduce their emissions of nitrogen oxides by 39% and of soot by 88%.

2012年起，柴油机列车须将其氮氧化合物排放降低39%，烟尘排放降低88%。

For the cathode, Planar uses lithium manganese dioxide; for the anode, doped tin oxides and lithium alloys.

普拉纳在负极上使用锂锰二氧化物，在正极上则涂上二氧化锡和锂合金。

Another source of nitrogen pollution comes from fossil fuels, which produce nitrogen oxides when they are burnt.

另一种氮污染的来源为矿物燃料，矿物燃料燃烧时，会产生氮氧化物。

Other filters and chemical "scrubbers" catch oxides of sulphur and nitrogen that would otherwise cause acid rain.

其他的过滤器以及化学“捕捉器”负责处理能够引起酸雨的硫氧化物和氮氧化物。

It is not pure ozone and it reacts with other oxides in the air and produces poisons and you are inhaling this.

这不是纯粹的臭氧发生反应，它与其他氧化物在空气中，并产生毒素，你是吸入这一点。

Black carbon is not emitted alone, but mixed with other things-organic molecules and various oxides of sulphur and nitrogen.

黑碳并不是单独被排放的，它被排放的同时还混合了许多别的物质——比如，有机分子还有各种各样的硫氧化物和氮氧化物。

Glaze is mostly translucent, but da Vinci would also slip in small amounts of pigments, such as manganese and lead oxides.

釉料大多是半透明的，但达芬奇也会添加少量色素，如锰，氧化铅。

In the lower atmosphere the oxides of nitrogen add to an increase in ozone and small particles, which can cause respiratory ailments.

在低层大气里，氮氧化物使臭氧和可以引致呼吸道疾病的微粒增加。

Run-off from animal manure also fouls watercourses, and the release of nitrous oxides from uncovered dung heaps pollutes the air.

动物粪便的流出物还污染了水道，未遮盖的粪堆释放出的氧化亚氮（ N2O） ，还会污染空气。

At the moment oxides of metals such as zinc and copper seem to be the favourites, but tiny tubes made of carbon are also being explored.

目前看多是用诸如锌、铜等金属的氧化物，但碳原料的微小管件也被开发出来。

Darker soils are often rich in iron and aluminum oxides, and are typical of highly weathered soil that forms in hot, humid climates.

而深色的土地通常是富含铁和氧化铝，是在湿热气候下形成的典型的高度风化的土壤。

And so, you make not only water vapor, nox but you make some nitrous oxides, nox, or nox as it is known, and this is the precursor to smog.

这样不仅仅得到的水蒸气，但是你会得到一些氮氧化物，或者如大家所知到的nox，这是烟雾的前驱体。

The first they dealt with by coating the top of the device with oxides of hafnium, molybdenum and titanium, in layers about 100 nanometres thick.

第一，他们在装置的上处理和涂上铪，钼，钛氧化物层，这层物质仅有100纳米厚。