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。
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。
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。
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%。
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。
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。
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%。
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。
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。
The acid reacts with most metals, to produce hydrogen and the metal's chloride, and with oxides, hydroxides, and many salts.
盐酸与大多数金属反应产生氢和金属的氯化物，还能与氧化物、氢氧化物及许多盐起反应。
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。
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。
Two pollutants cause most of the problem: oxides of nitrogen, which damage the lungs, and fine particulates, which are also carcinogenic.
空气污染主要由两大污染物造成：损害肺部的氮氧化物以及同样致癌的细颗粒物。
The research focuses on a specific form of nitrogen oxides present only at night — during the day it is broken down by even the faintest sunlight.
这项研究集中于只在夜间出现的一种氮氧化物的具体形式，这种氮氧化物在白天即使阳光极微弱也会被分解。
Most touch screens in phones are now made with indium tin oxides (ITO). The ITO's greatest asset is that it's transparent, but it comes with a cost.
大多数的手机触屏是由铟锡氧化物(ito)制成的，铟锡氧化物的最大优点是它是透明的，但它也很昂贵。
The uranium is then dissolved from the beads using a solution of ammonium carbonate and precipitated as "yellow cake", a mixture of uranium oxides.
接下来，小珠子里头的铀离子会被碳酸铵溶液溶解，其后沉淀，析出“黄饼”，即铀的氧化混合物。
Much of the arsenic found in these studies is in an inorganic form — the oxides arsenate and arsenite — known to sicken people exposed via drinking water.
研究表明，大部分砷以无机形式即氧化物砷酸盐和亚砷酸盐存在，人们通过饮水的方式摄入而患病。
On the basis of the first ionization potentials of the gases, Kossel noted that xenon was most likely to have the capability of forming fluorides and oxides.
在稀有气体一阶电离势的基础上，科塞尔注意到：氙最可能形成氟化物和氧化物。
The actual chemical make-up of rocks is complex, so the conventions of petrological analysis pretend that these metals are present in basalt as their oxides.
然而构成这种岩石的化学元素十分的复杂，因此根据常规的岩石分析得出出现在玄武岩里的金属都是其氧化产物。
Strong erosion: the metal workpieces dip in with high and certain temperature erosion of solution, to remove metal workpieces surface oxides and corrosion things process.
强浸蚀：将金属制件浸在较高浓度和一定温度的浸蚀溶液中，以除去金属制件表面上氧化物和锈蚀物的过程。
Strong erosion: the metal workpieces dip in with high and certain temperature erosion of solution, to remove metal workpieces surface oxides and corrosion things process.
强浸蚀：将金属制件浸在较高浓度和一定温度的浸蚀溶液中，以除去金属制件表面上氧化物和锈蚀物的过程。
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