查询词典 spontaneous emission

The two Fraunhofer lines at 688nm and 760nm are obvious in the radiance spectra by ASD FieldSpec Pro NIR spectrometer,which largely overlap the chlorophyll fluorescence emission spectrum of leaves.

第三，研究并分析了夫琅和费暗线方法计算的688nm和760nm波段的荧光特性，结果表明该方法计算的荧光是可靠的，它与光合有效辐射关系密切，复相关系数达到了0.9；冬小麦冠层荧光光谱在760nm和688nm波段的荧光大小基本相等，而地锦冠层荧光光谱在688nm波段的荧光强度是760nm的3倍左右，表明荧光光谱能够更加敏感地反映植被物种或生理生化状况的差别。

Therefore, this paper presents a new simple method for calculating and measuring emission threshold field, work function and thickness.

提供了一种简单、方便的计算或测量场发射的开启电场、功函数及厚度的新方法。

Some type of diesel engine emissions were calculated with these new models to get the production process in cylinder, the affection of different ejecting time to the emission laws were analyzed based on the production mechanism, and the effects of furl ejection delay were discussed.

用该模型计算了某型号柴油机的排放物，得到了这3种排放物在缸内的生成过程，并从它们的生成机理出发，分析了不同喷油定时对排放规律的影响，讨论了推迟喷油措施对降低排放物的效果。

Test and research work is carried out on engine test bench to survey the effect of gum content in gasolene upon gasolene engine power and harmful exhaust gas emission density.

在发动机试验台上进行了汽油中胶质含量对汽油机动力性和有害气体排放浓度影响的试验研究。

The relationship between olefin content in gasoline and exhaust emission of gasoline engine is discussed.

讨论了汽油中的烯烃与发动机排放之间的关系。

Is not enough, then only the corresponding failure to adjust the direction of infrared emission control, infrared receiver components and the relative position of gate round to see if you can restore.

还不行的话，只有调整故障对应方向红外发射管、红外接收组件与栅轮的相对位置，看能否恢复了。

The thesis generally analyses the actual situation of emission of S0, and the trend of development in the futtJre basing on the structure of resources and the development of electric power, Through the comparison of thermal generating station home and abroad analyses the air pollution control direction and propose the methods and suggestions of improving the pollution control of S0:.

中文摘要：本文在分析我国能源结构状况和电力发展的基本趋势基础上，对我国SO_2排放现状和未来发展的趋势进行了总体分析：通过对我国与国外发达国家火电厂大气污染控制的全面比较，分析了我国对大气污染控制的发展方向，并提出了我国目前加强对火电厂SO_2污染控制的对策与建议。

All patients underwent fluorodeoxyglucose positron emission tomography 6 to 8 months after GKS.

所有的病人都在加马刀放射手术治疗后的6-8个月实施氟-18去氧葡萄糖正子断层摄影。

Our study suggests that, for patients with gliomas treated by GKS, the post-treatment fluorodeoxyglucose-positron emission tomography could be used to predict response to treatment.

我们的研究显示对经过加马刀放射手术治疗的神经胶质瘤的病人而言，治疗后的氟-18去氧葡萄糖正子断层摄影可以用来预测治疗效果。

It is pleasant that high-end chipsetclasssometimes can gladden owners by the low heat emission level .

它是舒适，高档次的芯片级，有时gladden业主的低热量排放水平。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。