The conditions for acquiring and retaining a thick nitrogen atmosphere are now readily understood.
现在很容易了解获得和保持厚氮大气的条件。
The thick nitrogen atmosphere holds fog, mist, smoggy haze and rain clouds.
厚厚的氮气组成的大气层你弥漫着烟雾和云。
AlN crystals were grown by modified sandwich sublimation method in nitrogen atmosphere.
采用改进的升华法在氮气环境下制备氮化铝单晶体。
Comparatively, the hydration resistance of specimens after treatment in nitrogen atmosphere is superior.
在相同温度条件下，氮气保护处理试样的抗水化性能优于埋炭保护处理试样。
Low - temperature boronizing base was studied for card wires with nitrogen atmosphere as outer layer protection.
对针布齿条氮基气氛外层保护低温渗硼的方法进行了研究。
The stabilized polyacrylonitrile fiber was prepared by the method of liquid-phase stabilization and carbonized in nitrogen atmosphere.
通过液相稳定化法制备了聚丙烯腈稳定化纤维。
A synthesis method is propsed to prepare metal nitrides by direct nitridation of metals in static nitrogen atmosphere at high temperature.
提出了在高温和静态氮气氛下利用金属与氮气直接反应制取金属氮化物的合成方法。
Temperature control means using thyristor surge phase shifter using nitrogen atmosphere furnace used to seal welding, excellent sealing properties.
控温方式采用可控硅移相调压，采用氮气保护气氛，炉体采用全密封焊接，密封性能优良。
It may be regarded that the weight method of steel screen which is used to measure the chemical potential of nitrogen atmosphere is reliable in situ.
钢箔称重法与钢箔化学分析法测量结果无显著差别，可以认为钢箔称重法用于生产现场气氛氮势的炉前检验是可靠的。
The thermal stability of heat transfer oil in air and nitrogen atmosphere with the help of DTA/GC on line coupled simultaneous technique was studied.
用DTA／GC在线联用技术，分别在氮气和空气气氛中对导热油热稳定性进行研究，提出并探讨了以热分析方法来确定导热油最高使用温度的可能性。
Heating the crystal in a nitrogen atmosphere, Dr Nakamura found, released the hydrogen atoms and dramatically improved the ease with which holes could move around.
Nakamura博士发现在氮气中加热晶体会释放出氢原子然后会极大得改进正电穴向四周迁移的容易程度。
The preparation of aluminium nitride powder by means of direct nitridation under pressurized nitrogen atmosphere and carbothermal nitridation of alumina is studied.
对在加压氮气中金属铝粉的直接氮化和氧化铝粉的碳热还原氮化法制备氮化铝粉末进行了研究。
Feasibility to produce flake aluminum powder from aluminum foil scrap by dry ball milling in inert nitrogen atmosphere with a few fraction of oxygen was investigated.
对在氮气惰性气氛下，利用废弃铝边角料生产片状铝粉的可行性进行了研究。
In this paper, the effect of heat treatment by the nitrogen atmosphere and vacuum furnace and shot peening thereafter on fatigue properties of 300m steel were studied.
本文对比分析了氮基保护气氛和真空两种热处理加热介质对300 M钢疲劳性能的影响，并研究了热处理后表面喷丸强化对300 M钢疲劳性能的改善情况。
A new method to synthesize sodium dioleyl sulfosuccinate by esterification and sulfonation without adding any extra phase catalyst in nitrogen atmosphere was developed.
研究在氮气保护下采用非外加相转移催化剂经酯化和磺化合成磺基琥珀酸双十八油酯磺酸钠的新方法。
The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen.
这颗行星有相对较薄的大气层，主要由氮气和氧气组成。
In the process, the particles collide with atoms of nitrogen and oxygen in the Earth's atmosphere, which then glow, creating an effect similar to miniature neon signs.
在这个过程中，太阳粒子会同地球大气中的氮原子和氧原子撞击并发出光芒，从而制造出类似于微型霓虹灯效果的极光。
Prather says we should now be following nitrogen trifluoride concentrations in the atmosphere closely.
普莱瑟说我们现在应当密切关注大气中的三氟化氮含量。
Nitrogen, which, makes up about 78% of the Earth's atmosphere, is an inert gas but it has more reactive forms.
虽然组成地球大气78%的氮是一种惰性气体，但它却有多种化学式。
In theory extra carbon dioxide in the atmosphere should help plants grow faster, though whether this actually happens may also depend on the amount of nitrogen in the soil.
理论上，大气中二氧化碳含量增多会使作物生长加快，实际上，还要看土壤中所含氮成分的多少。
Auroras occur when charged particles from the sun collide with Earth's upper atmosphere, causing atoms of oxygen and nitrogen to gain energy and then release it in the form of light.
太阳的带电粒子与地球上层的大气相撞，促使氧和氮原子获得能量，然后以极光的形式释放出来。
It was initially thought that the early Earth's atmosphere would have freed up nitrogen to bond with other elements.
开始被认为早期的地球的大气会释放氮同其他元素结合。
Nitrogen in the atmosphere is harmless in its inert state, but the report says reactive forms of nitrogen, largely produced by human activity, can be a menace to the natural world.
大气中的惰性氮是无害的，但报告说主要由人类活动产生的活性氮可能危害自然界。
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。
Geysers erupt when sunlight evaporates volatile deposits of nitrogen, and a thin atmosphere of nitrogen holds tenuous clouds in weather patterns that change with Triton's seasons.
但是这样一个冰冻的世界却惊人的鲜活。间歇泉喷发时，易挥发的氮气沉淀物在阳光作用下蒸发，薄薄的氮气层随特里同上的季节变换展现出不同天气的云层。
Nitrogen oxide released from nitrogen fertilisers accumulates in the atmosphere as a green house gas that is 300 times more damaging than carbon dioxide.
由氮肥产生的含氮氧化物等温室气体进入大气后，其产生危害能力二氧化碳的三百多倍。
The concentration of nitrogen trifluoride in the atmosphere is about 0.5 part per trillion, making it very hard to measure.
大气中三氟化氮的浓度大约为0.5万亿分之一(ppt)，使得它很难测定。
But the first-ever measurements of nitrogen trifluoride levels in the atmosphere, published recently in the journal Geophysical Research Letters show that emissions could be as high as 16 percent.
但对大气中三氟化氮含量的首次测量，最近发表在《地球物理学研究通讯》(Geophysical researchletters)，揭示出其排放量可高达16%。
But the first-ever measurements of nitrogen trifluoride levels in the atmosphere, published recently in the journal Geophysical Research Letters show that emissions could be as high as 16 percent.
但对大气中三氟化氮含量的首次测量，最近发表在《地球物理学研究通讯》(Geophysical researchletters)，揭示出其排放量可高达16%。
应用推荐