The atmospheric concentration of methyl chloride (CH 3Cl) is very low, only at 10 -12 (V/V) level.
氯甲烷在大气中的浓度较低，仅为10 -12 级别。
Now that the gas is no longer being produced, scientists can more accurately gauge the action of hydroxyl upon methyl chloroform's atmospheric concentration.
既然再不会生成这种气体，那么，科学家们就能够更精确地测量在甲醇氯仿物的空气聚合反应中生成的氢化物水平。
Human activities has result in the increase of atmospheric concentration of greenhouse gases, which is concerned as a main cause of the global climate change.
人类活动造成大气中温室气体浓度急剧增加已成为全球变化中最主要和最直接的变化。
Giving an example, application of GM (1, 1) in forecasting environmental atmospheric concentration wsa introduced in detail, in the light of Grey System Theory.
运用灰色系统理论，结合实例详细介绍了GM(1,1)模型在大气环境浓度预测中的应用。
In the following graph the effect of the atmospheric concentration of CO2 on the photosynthesis rate in plants C3 and C4 is observed. The arrows indicate the compensatory points of each plant.
在下图里，观察c3和C4植物之大气中的CO2浓度对光合作用速率的影响。箭头表示每棵植物的补偿点。
In their model, the researchers doubled the concentration of atmospheric carbon dioxide and recorded the magnitude and geographic pattern of warming from different factors.
在他们的模型中，这些研究人员加倍关注大气中的二氧化碳量，并记录下有不同原因引起的变暖的多少和覆盖的地理类型。
Those who pay honest attention to long-term climate patterns will note that atmospheric CO2 concentration fluctuations do not lead, but typically follow, temperature changes.
那些热心关注长期气候模式的人们会发现大气中的二氧化碳浓度波动不是温度变化的诱因，而是其结果。
The concentration of atmospheric carbon, an important indicator of global warming, has shot from 280 parts per million in pre-industrial times to 386 PPM last year and appears to be accelerating.
全球变暖的重要指示——大气的碳浓度——已经从工业社会前的280ppm (partspermillion)激增到386 p pm，而且这一速度似乎还在增加。
Because the effects of atmospheric carbon take years to show up as higher temperatures, limiting concentration to 450 ppm requires halting emissions at current levels.
因为大气碳含量增加表现在气候变化上要经过几年的时间，把它限制在450ppm的水平上需要我们现在就终止排放。
The results show that the boundary layer scheme in atmospheric model may play an important role in simulating concentration of dust storm.
通过分析，作者认为大气模式中的边界层模式差异对沙尘暴中沙尘浓度的模拟能产生较大影响。
Elevated atmospheric CO2 concentration significantly increase crops biomass, which will input more carbon into soil to affect soil carbon stability and accumulation.
大气CO2浓度升高显著增加作物生物量，从而使进入土壤的有机碳增加，这势必会影响土壤碳的稳定和积累。
The calculated result could be used as reference for calculating pollution concentration, preventing atmospheric pollution and environmental planning etc.
计算结果可为大气污染浓度的计算，大气污染防治，及环境规划等提供参考依据。
The effect of atmospheric humidity on probing mass concentration of atmospheric dust by lidar is also discussed.
讨论了大气湿度对激光探测大气尘埃质量浓度的影响。
Increased in atmospheric CO_2 concentration on rice methionine and threonine content appropriate to increase the role-played.
大气co_2浓度上升，对水稻蛋氨酸和苏氨酸含量起到适当增加的作用。
Gaussian model with the assumption of the normal distribution of plume concentration is mostly applied for the evaluation of local atmospheric pollution in the world.
在研究局部地区空气污染时，目前国内外应用较为广泛的仍是假设烟羽浓度为正态分布的高斯模式。
The sources of methane by monitoring its concentration in the ground atmosphere was analyzed, which provided important bases for the studying in the atmospheric chemistry.
通过监测地面环境空气中甲烷的含量来分析其来源，能够为大气化学的研究提供非常重要的依据。
A minor change in soil respiration rate can significantly slow down or accelerate the increase of atmospheric CO2 concentration that is closely related to global climatic change.
土壤呼吸即使发生较小的变化也能显著地减缓或加剧大气中CO2浓度的增加，从而明显影响到全球气候变化。
Size distributions of number concentration of atmospheric aerosol measured by optical particle counter aboarded on aircraft were analysed.
本文对用光学粒子计数器在飞机上测量的大气气溶胶数密度-粒度谱分布进行了分析研究。
Results: The main channel of atmospheric pollution and the law governing the changes in concentration were summed up and a proposal for the control of air quality in the compartments was advanced.
结果：分析归纳了舱室大气污染的主要途径及浓度变化规律；提出了舱室大气质量控制建议。
Nitrogen has great effects on the plant photosynthesis, organic matter decomposition, carbon allocation and the responses of ecosystem when the atmospheric CO2 concentration increases.
氮素可限制植物光合、有机质分解、同化产物的分配以及生态系统对大气co2浓度升高的响应。
This calibration method is of significance to the further analysis of atmospheric transmission and the retrieval of the concentration of infrared active gas in atmosphere.
这对于进一步分析大气透过率和反演大气中红外活性气体浓度具有实际意义。
Tantalum is used across the entire concentration range at atmospheric boiling and above.
钽适用于常压沸点及沸点以上的整个浓度范围；
Plants during the growing season are often subject to various environmental factors in stress for example light intensity, temperature, moisture, atmospheric CO2 concentration and so on.
植物在生长季节经常受到光照强度、温度、水分、大气CO2浓度等各种环境因子的胁迫。
Liquid-liquid equilibrium data at atmospheric pressure was determined for the extractant S100, the initial concentration of the acetic acid and temperature on extraction process were studied.
采用液液相平衡釜法测定了常压下络合萃取剂s100的相平衡数据，考察了醋酸初始浓度和温度对萃取平衡过程的影响。
Human activities such as industry, transportation and energy consumption, have great impact on the gas concentration of the atmospheric greenhouse.
工业、交通和能源消耗等人类活动对大气中温室气体的浓度增加起着极其重要的作用。
A hypobaric storage system controls the O2 concentration by regulating the atmospheric pressure, but its technology and effect differ from CA entirely.
减压贮藏系统用调节大气压力控制O2浓度，其技术与效果与CA完全不同。
A hypobaric storage system controls the O2 concentration by regulating the atmospheric pressure, but its technology and effect differ from CA entirely.
减压贮藏系统用调节大气压力控制O2浓度，其技术与效果与CA完全不同。
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