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The purpose of this study is petroleum ether (30℃-60℃) the optimum extraction of artemisinin-based research, as well as by ultraviolet-visible spectrophotometer in the artemisinin content of Artemisia annual samples.

本研究主要是对石油醚（30℃-60℃）提取青蒿素的最佳工艺的研究以及用紫外-可见分光光度计对青蒿中青蒿素含量的测定。

The interaction between CaA and Cu and influence of ethylenediaminetetraacetic acid,solvent and pH on the interaction were also studied to help elucidate the detailed prooxidant mechanism using UV-visible spectroscopy, demonstrating that it is CaA phenolate anion,instead of the parent molecule,chelates with Cu as a bidentate ligand,hence facilitating intramolecular electron transfer between CaA and Cu.

可见分光光度计研究了CaA和Cu的相互作用以及EDTA、溶剂、pH对这种相互作用的影响，证实了CaA本身没有与Cu螯合，而是咖啡酸酚氧负离子作为双齿配体与Cu进行螯合，形成的络合物有利于分子内电子转移。

It is the phosphor coating, not the mercury vapour itself, that produces the fluorescence effect—and hence the visible light.

是被覆的磷而不是汞蒸气，产生荧光现象——和可见光。

The UV radiation created is converted to visible light as it passes through a phosphor coating on the surface of the tube.

因为激活的电子从高能态退到低能态，他们放射出紫外线，当通过玻璃管表面的三基色荧光粉时，产生的紫外线转化成可见光。

In electronics, the ability of the CRT phosphor dots to withstand local over- heating due to the conversion into heat of the residual energy of the electron beam, i.e. that part of the electron beam energy that is not converted into visible light.

在电子学中，指阴极射线管的荧光粉承受局部过热的能力，这种过热是由于电子束的残余能量，即电子束没有转变成可见光的那部分能量，转变成了热。

Part 3 : methods of measurement of photoconductive cells for use in the visible spectrum

第3部分：用于可见光谱的光电导管的测量方法

Investigation results show that Srl-xLaxTiO3 film possesses superior photosensitivity characteristics in the range of visible light,and higher sensitivity and photoconductivity gain.

结果表明，Sr1-xLaxTiO3薄膜在可见光区域具有较好的光敏特性，其灵敏度和光电导增益都比较高。

It is well known that a-Si TFTs has a high photocurrent under exposure to visible light.

我们都知道，非晶矽的薄膜电晶体在可见光的波长环境下有相当高的光电流输出，所以将其运用在光感知元件上有其优越之处。

Through the invention, an infrared light is up-converted into a visible light which can be easily absorbed by a dye-sensitized nano material, and can help dye molecules to absorb sunlight of wider spectrum, thereby further improving the photoelectric conversion efficiency of the cell.

本发明它可将红外光上转换为染料敏化纳米材料易于吸收的可见光，可以有利于增强染料分子吸收更宽谱域的太阳光，这样将进一步提高电池的光电转换效率。

The mechanism of its visible-light activity was investigated by UV-Vis absorption spectra and X-ray photoemission.

通过UV-Vis吸收光谱、X射线光电子能谱等方法对其可见光活性的机理进行探索。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。