查询词典 emission

In 1871, not only emission lines but also absorption lines were detected in the coronal spectrum.

在1871年，在日冕光谱中不仅有射线而且还有吸收线被发现。

At the eclipses of 1868 and 1869, observed from Siam and from the United States, respectively, the first coronal emission line was detected: about 25 years later, it was said to be from the element 'coronium', by analogy with the prior discovery of helium.

1868-1869的一次日蚀期间，观测者由泰国和美国分别观测，第一个日冕射线被检测到，大约25年后，被证实来自元素"coronium"，于氦的发现类似。

So, we make the selective emission through the one step diffusion method by the countercheck effect instead of by the ordinary two step diffusion method.

因此，我们认为可以通过利用SiO_2的阻挡作用，结合机械刻槽和丝网印刷，通过一次扩散宋代替通常的分两次进行扩散宋制作"选择性发射极"的方法。

Based on the data from Eurostat New Cronos database about the GDP, energy consumption and emission of greenhouse gases of European Union in 2003, we explore the relationship between three aspects of social-economy activities. Summary description and regression analysis are adopted in this research under SAS.

基于Eurostat New Cronos数据库提供的欧盟25个国家2003年的GDP、能源消耗与温室气体排放数据，在SAS系统下，运用描述性分析与回归分析，检测了欧盟25个国家经济发展、能源消耗与温室气体排放之间的相关性。

"Aah!" It was not a spoken word, but an emission of breath from the Duke of Croydon.

"噢！"这声音不像是从口中说出来的，倒像是从克罗伊敦公爵鼻子中呼出来的。

A study on the effe ct of slotting technology and surface treatment upon energy resolution for BGO crystal array detector used in positron emission tomography-PET is de scribed.

介绍了用于正电子发射断层扫描仪的阵列式探测器中的BGO晶体开槽工艺和表面处理对探测器能量分辨率影响的研究，并给出了有关的实验结果。

The emission of CH4 and N2O increased basically with acidification cumulation degree.

CH4和N2O的排放基本上随酸化累积程度的加深而增加。

The electroplating waste water contains many heavy metals such as chromium,cadmium,nickel,cuprum,zinc.So the direct emission of it will lead to produce great negative effect for ecosystem,human health,industry production and living.

电镀废水中含有的重金属离子如铬、镉、镍、铜、锌等，直接排放将恶化生态系统，给人类的健康和生产生活造成极大的负面影响。

The field emission current density was increased to a maximum, and then decreased with increasing the oxidation temperature.

用扫描电镜、Raman光谱分别对300~500℃的氧化提纯后的碳纳米管的形貌和结构进行了表征。

Low Drive Current, High Intensity of Light Emission.

驱动电流低，发光强度高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。