当水作为空气的成分时，我们看不到也感觉不到。
一天去爱他，想知道氮气。一个小时去感谢他，听说空气的成分。你只需要一分钟去找到一个特别的人。氮气。 。
They say it takes a minute to find a special person, an hour to appreciate them, a day to love them; but then an entire life to forget them.
人类将河川污染了，将地下水吸干了，将大地花了无数年代，埋在地下的瓦斯、原油等都抽取出来，严重地破坏了空气的成分；
Most rivers are polluted, water is exhausted, gas and oil that have been buried underground for millions years are extracted. Thus air is polluted;
空气污染的成分和程度在各个地方都不尽相同。
The composition and levels of air pollution vary from place to place.
通过研究这些成分，科学家们获得了气候的许多方面的详细档案，包括空气温度、降雪和大气中温室气体的浓度。
By studying these components, scientists have obtained a detailed archive of many aspects of climate, including air temperatures, snowfall, and concentrations of greenhouses gases in the atmosphere.
研究者们还需要判断嗅觉到底是一种还是两种感觉，一种感觉回应气味本身，另一种感觉记录空气中无味的化学成分。
Researchers have still to decide whether smell is one sense or two—one responding to odours properly and the other registering odourless chemicals in the air.
这次冰川火山会使得空气中的成分发生变化吗？
Does this glacier volcano make a difference in what is in the air?
属性主宰者双子座，成分是空气，最喜欢的季节是春天。
The planet Mercury rules Gemini and the element is air and the favorite season is spring.
一般认为死于哮喘，心脏病和其它疾病的人数增加与灰色空气中的主要成分颗粒污染物有关。
Particulate pollution, a major ingredient of hazy skies, has been linked to higher death rates from asthma, heart disease, and other ailments.
生态学研究的是整体；生物学研究的是这个整体里的有机成分，这些有机成分并不比空气、水和土壤更重要。
Ecology studies the whole; biology studies the organic constituents of the whole that are no more important than air, water and soil.
而地球向太空所辐射的能量多少，则在于大气层中空气成分构成，尤其是温室气体的含量大小。
The amount of energy emitted by the Earth depends significantly on the chemical composition of the atmosphere, particularly the amount of heat-trapping greenhouse gases.
“关键就在于使用空气中的氧气作为试剂，而不是在电池内部添装必需的化学成分。”布鲁斯说。
"The key is to use oxygen in the air as a re-agent, rather than carry the necessary chemicals around inside the battery," says Bruce.
“绿色自由”设想让空气经过加入了碳酸钾为成分的冷却液。
With Green Freedom, they would pass the air over a solution of potassium carbonate added to the cooling liquid.
这些微生物被命名为anammox，它可以把碱和有害的氨转化成氮气，无害的氮气是我们呼吸的空气的主要组成成分，占到了空气的78%。
These creatures, now called anammox bacteria, transform caustic and hazardous ammonium into dinitrogen, the harmless nitrogen gas that makes up 78% of the air we breathe.
但那些居住在城市的人抱怨空气中的毒害成分。
气体环境：一个有限的空间如熔炉里的空气的组成成分。
ATMOSPHERE: Elements that make up the air in a confined locality such as in a furnace.
技术高度发达，以至我们开始改变空气和水的成分。
The technology had got so advanced, that we had began to change the elements of air and water.
并对影响城市空气质量的5个主要因素进行主成分分析，找出最能代表原来数据信息的2至3个因子代替原来的5个变量。
Then 5 main factors affecting urban air quality to principal component analysis identify the most representative of the original data instead of the 2 to 3 factors 5 variables.
烹调油烟是室内主要空气污染物之一，化学成分复杂，严重影响职业接触人群的健康。
Cooking oil fume, one of major indoor air pollutions with chemical elements, greatlyly harms the health of professional workers exposed to it.
根据NASA的相关研究，证明了蜘蛛草可以除去空气中的甲醛、二甲苯和甲苯成分。
In NASA's study, they were shown to get rid of formaldehyde, xylene and toluene.
滤毒罐防毒面具的一部分，含有过滤装置，能将有毒成分从空气中除去。
The part of a gas mask that contains the filter for removing toxic agents from the air.
室内物品表面上烟草烟雾烟残留物当与室内空气中的化学成分发生反时应会形成致癌物。
Residues of cigarette smoke deposited on indoor surfaces can turn carcinogenic when they react with airborne chemicals.
酸性腐蚀与生锈是由机油成分所控制的，而磨料磨损是由空气、机油过渡与机油更换间隔时间所控制的。
Acidic corrosion and rusting are controlled by formulation of the oil while the abrasive wear is controlled by air and oil filtration and oil drain intervals.
地球上空气的大部分成分是氮气。
封闭舱室不能与大气中的空气进行交换，必须去除舱室中有害杂质，维持必需的气体成分和纯净度，需要一套有效的空气调节和再生装置来完成这一任务。
The air of close cabin can't exchange with that of atmosphere, the harmful impurity must be wiped off from cabin, in which the purity and element of gas needed can be maintained.
封闭舱室不能与大气中的空气进行交换，必须去除舱室中有害杂质，维持必需的气体成分和纯净度，需要一套有效的空气调节和再生装置来完成这一任务。
The air of close cabin can't exchange with that of atmosphere, the harmful impurity must be wiped off from cabin, in which the purity and element of gas needed can be maintained.
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