此外,河流筑坝等工程也增加了沉积物的产量,更不用说大气中二氧化碳和甲烷的增加。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
这次爆炸将大约100万亿吨的尘埃提升到大气中,这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
GEOS - 5运用描述物理过程的数学方程(比如沉积过程和成云过程)来模拟大气的变化。
The GEOS-5 model USES mathematical equations that represent physical processes-such as precipitation and cloud processes-to calculate what the atmosphere will do.
沉积到地面的大气微粒同样能融化冰川。
Particulates can also melt the ice when they precipitate out of the air and land on it.
总体来说,较重的原子在大气圈中沉积,而较轻的原子则存在于大气圈表面,这也是一些白矮星具有较纯净的氢和氦大气圈的原因。
In general, the heavier atoms in the atmosphere sink and the light ones remain at the surface, which is why some white dwarfs, for example, have mostly pure hydrogen or helium atmospheres.
存在:氦存在于自然大气中,在土壤中沉积,而且能从空气中分离出来。
Occurrence: Helium comes from natural gas, deposits within Earth, and can be isolated from air.
这颗星在冷却后甚至会塌陷,导致不同元素飘浮于大气圈中或者沉积于底部,即闪烁的锆元素层表面或内部。
The star might even be shrinking as it cools, causing various elements to float into the atmosphere or sink to the bottom — with that glittery zirconium layer front and center.
然而,由于地壳的变动,那些包含着古代动植物尸体的沉积物重新回到了地球表面,在那里他们分解,并又一次的从大气中吸取氧气。
As the crust shifts, however, it can bring sediments containing ancient corpses back to the surface, where they decompose, removing oxygen from the atmosphere once more.
沉积物中细菌对这一部分物质的分解极大影响着大气二氧化碳。
The breakdown of a portion of this matter by bacteria in the sediment contributes significantly to atmospheric carbon dioxide.
湖泊沉积物产生的二氧化碳也将相应增加,从而造成更大程度的大气排放。
The production of carbon dioxide by lake sediment will increase correspondingly, resulting in higher levels of emissions to the atmosphere.
瑞典研究人员发现沉积物对碳的截留作用对温度变化极其敏感,气候一变暖,大气中二氧化碳的排放量就会增加。
Swedish researchers have shown that carbon retention by sediment is highly temperature-sensitive and that a warmer climate would result in increased carbon dioxide emissions to the atmosphere.
一部分仍沉睡于沉积物中,间或达几千年,而其余的大部分则分解为二氧化碳和甲烷,释放到大气中。
A portion remains in the sediment, sometimes for thousands of years, while the rest is largely broken down to carbon dioxide and methane, which are released into the atmosphere.
Bodélé盆地,这个被古代湖底沉积物覆盖的撒哈拉平原,面积1万平方英里,每年横扫这里的大风会把70万吨沙尘送入大气中。
Winds whipping across the Bodélé, a 10,000 square mile Saharan plain covered by ancient lakebed sediments, carry 700,000 tons of dust into the atmosphere annually.
过去冰河时代发生的部分原因在于在几百万年的时间里,石头的风化吸收了大气中的二氧化碳,然后以沉积物的形式把这些二氧化碳固定在海底。
Past glacial ages occurred partly because the weathering of rocks, over millions of years, pulls CO2 from the atmosphere, locking it in ocean floor sediment.
酸雨——大气中沉积的酸性物质。
氮霜,鳞纹理板,孔,是对升华和沉积模式的见证,由于稀薄的大气通过循环的扩张和崩溃。
Scaly textures in a veneer of nitrogen frost bore witness to patterns of sublimation and deposition, as the thin atmosphere breathed through cycles of expansion and collapse.
在大气氛围中,采用电化学沉积的方法在钽电极表面合成了导电聚吡咯膜。
They are coated on the surface of the tantalum electrode by electrochemical deposition in air.
用腐蚀探测电池研究了温度、湿度和盐沉积量等腐蚀因素对大气腐蚀性的影响。
The influences of temperature, relative humidity ( RH ) and the salt deposit on atmospheric corrosivity were investigated by means of corrosion detective cells.
成矿流体是大气水和沉积地层水的混合溶液。
The ore -forming fluid is a mixed solution of the atmospheric water and sedimentary stratal water.
暴露于大气中的铝表面呈现三层结构,即氧化铝和氢氧化铝层、其上的腐蚀产物层和最上层的污染物沉积形成的污染物层。
A three layer of aluminum exposed to atmosphere is identified: the aluminum and its native oxide, the corrosion layer atop oxide aluminum, and a surface contamination layer.
用透射电镜(TEM)对大气中火焰法沉积(CFD)金刚石薄膜的组织结构进行了分析研究。
Microstructure of diamond films deposited by combustion flame (CFD) in the air was analyzed by transmission electron microscopy (TEM).
约10%-30%的燃烧产物会以颗粒物状态随尾气排放到大气中,而其余大部分则沉积到发动机、排气系统及催化转化器的表面。
Only about 10%-30% products will be emitted as PM into atmosphere through tailpipe, but most parts will deposit on surface of engine, exhaust system and catalytic converter.
NF3具有相对短的大气寿命(740年),比C2F6和CF4。更容易分解。HF最终扩散到大气中,在大气中它通过湿沉积被除去。
NF3 has a relatively short atmospheric lifetime (740 years) and dissociates more readily than C2F6 and CF4. HF ultimately diffuses down to the troposphere where it is removed by wet deposition.
这些冰河沉积物下方的较老岩层,是沥青铀矿与黄铁矿碎屑;这两种矿物被认定为大气中氧气极为稀少的证据。
In the older rocks below these glacial deposits are detrital uraninite and pyrite two minerals considered evidence for very low levels of atmospheric oxygen.
污染物在大气中被稀释扩散时,还会发生干沉积、湿沉积和化学转化过程,所有这些都会影响污染物在大气中的分布。
Air diffusion can impact the pollutant distribution in atmosphere, and so do some non-diffusion aspects such as dry sediment, wet sediment and chemical translation.
水主要来源于古海水和大气降水,有机质来源于沉积岩中生物质;
The water mostly comes from ancient sea and atmosphere while organic material from ancient life-form.
见有汞异常浓度由沉积物向上经底层、表层海水到海面大气渐次降低的趋势。
The trend of decrease in mercury content is seen from sediments upwards to bottom seawater, surface seawater, and sea-surface air.
综述了从沉积物、底水和低层大气三维空间进行天然气水合物地球化学识别方法的研究成果。
The authors introduce the research results of identifying gas hydrate from sediments, bottom water and lower atmospheric layers.
本发明描述使用定向反应物气流和相对于所述气流移动的基板的次大气压化学气相沉积。
Sub-atmospheric pressure chemical vapor deposition is described with a directed reactant flow and a substrate that moves relative to the flow.
本发明描述使用定向反应物气流和相对于所述气流移动的基板的次大气压化学气相沉积。
Sub-atmospheric pressure chemical vapor deposition is described with a directed reactant flow and a substrate that moves relative to the flow.
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