查询词典 flash spectrum

At the eclipse of 1870, a more complete set of emission lines from the chromosphere was observed;it is still known as the 'flash spectrum' from the way it flashes into view as the Moon completely covers the solar photosphere.

在1870年的一次日蚀中，更多来自色球层的完整的射线被观测到，当月球完全挡住了太阳的光球时其仍被认为是闪烁的射频频谱而被观察到。

The acetylation-induced changes in spectra with respect to UV/VIS absorption, RAMAN and Flash Kinetic Spectrum of purple membrane were determined in a wide range of wavelength and PH.

中国科学院生物物理所，北京 100101摘要：在很宽波长和pH范围内用紫外及可见区光吸收、圆二色及共振拉曼测定了酰化诱导的紫膜溶液的光谱变化。

The reaction mechanism of HNO2 and C6H5Br in aquepus solution with the presence of O2 or absence of O2 is studied by laser flash photolysis transient absorption spectrum technique under irradiation at 355nm.The intermediate and final products have been analyzed after the irradiation of laser.The photolysis mechanism of C6H5Br…OH has been discussed.

另外，采用激光闪光光解瞬态吸收光谱技术，从微观反应机理角度分析了无氧或氧气饱和条件下HNO2与C6H5Br的光化学反应，以及溶液经激光照射后产物的生成情况，并着重探讨了反应中间产物C6H5Br…OH的微观反应机理，得到了一些重要的动力学参数。

A successful observation of the flash spectrum was made by a slitless spectrograph in Bui-Li county, Yun-Nan province during the total solar eclipse of Feb.

1980年2月16日日全食时，我们在云南省瑞丽县用一架无缝光谱仪成功地进行了一次闪光光谱观测。

A series of reactions may occur when the nitrous acid and naphthalene inside the atmospheric aqueous phases is exposed to sunlight. This article devotes to investigating from a microscopic angle the reaction mechanism and kinetics of this system using laser flash photolysis technique with an excitation wavelength of 355nm. The main research results are listed as below:(1) The OH quantum yield FOH for the photolysis of HNO2 in the aqueous phase was determined to be 0.234 and the absorption spectrum of OH radical was recorded as well.

本文以激光闪光光解为主要研究手段，考察了大气液滴中的HNO2及HNO2+萘体系经355nm紫外光照射后发生的微观反应及其机理，结果表明：(1)液滴中的HNO2经355nm光照产生OH自由基的量子产额为FOH=0.234；以瞬态技术记录了水相中的OH自由基的吸收光谱。

Matching error of scintillator emission spectrum with lens system will have influence on image quality of photoelectric receiving systems in flash radiography.

转换屏的X射线激发发光光谱与透镜系统的匹配偏差会对闪光照相光电接收系统的成像质量造成影响。

Keywords Bromobenzene;Laser flash photolysis;HNO_2;Transient absorbance spectrum;OH radical;Cross-reaction

溴苯； 激光闪光光解； HNO_2；瞬态吸收光谱；·OH自由基；交叉反应

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。