The reason is a fundamental one associated with the mechanism of light emission. 其基本原因涉及到光发射的机理。
This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources. 本章论述几种有关各种排放源的大气污染物浓度分布的估算方法。
Our result shows that the γ-rays are associated with the radio emission from the jet, and that the γ-ray emission is likely to have come from the synchrotron self-Compton model ( SSC) process in this case. 本文结果表明,γ射线和射电辐射都来自喷流,γ射线很可能产生于同步自康普顿(SSC)过程。
Metabolic patterns associated with the clinical response to galantamine therapy: A fludeoxyglucose F 18 positron emission tomographic study 与加兰他敏治疗临床反应相关的代谢模式:氟(~(18)F)脱氧葡萄糖PET研究
There was also a significant increase in lung cancer risk associated with an overall index of indoor air pollution due to coal burning emission, the PAR was 13% for men and 17% for women. 室内空气污染指数与患病危险性呈显著线性相关,它的PAR在男性为13%,女性为17%。
A new idea that the distribution movement of electric charge in the crack tip end being associated with rock fracture propagation produces electromagnetic emission was brought up. 本文提出了岩石破裂时的电磁辐射是裂纹尖端电荷随着裂纹加速扩展运动所产生的假说。
Therefore the oxidation kinetics of scratched aluminum is associated with the exoelectron emission decay of the scratched surface under ordinary temperature and reduced Pressure. 由此,通过在常温低压下铝划伤表面外逸电子发射衰减,讨论了划伤铝初始氧化的动力学过程。
Objective To understand the situation and distribution of bacterium in ventilator associated pneumonia ( VAP) in neurosurgery, provid a reasonable selection for antibiotic use in clinic to decrease and control the occurrence and emission of VAP. 目的了解神经外科机械通气性肺炎(VentilatorassociatedpneumoniaVAP)病原菌感染的现状与分布,为临床减少、控制VAP的发生、传播,合理使用抗生素提供依据。
Auger Electron Energies and Their Absolute Intensities Calculations Associated With Internal Conversion Electron Emission 伴随内转换电子发射的俄歇电子能量及强度计算
There was no significant relationship between methane flux across water-air interface and trophic level, but the maximum emission was associated with high trophic level. Temperature significantly promoted methane emission. 水&气界面的CH4通量与水体营养水平的相关关系不显著,但最大释放通量受到各站营养水平的控制;温度对于CH4的释放速率有着显著的促进作用。
However, hydrogen production from fossil fuels is always associated with the emission of greenhouse gases and local pollutants. In nature, H2 can be produced from different resources. 由化石燃料制氢会排放温室气体并造成大气污染。虽然有很多不同的原料可以用于生产氢气。