查询词典 ultraviolet rays

Using the technique of ultraviolet absorption spectrometry and fluorescence spectrometry, this study examined the interactions between bromoform(CHBr3) and calf thymus DNA with or without Cu2+, Co2+, Cd2+ and Mg2+individually or concurrently.

采用紫外光谱和荧光光谱法研究了CHBr3与离体小牛胸腺DNA间的相互作用，以及Cu2+、Co2+、Cd2+、Mg2+ 4种金属离子单独或共存时对CHBr3与ctDNA结合的影响。

Parents should remember that while children have more exposure to ultraviolet light to help calcium absorption, if your children light up, and excess, then the child is not absorption, excretion out, in fact, still nothing has been completed.

家长要记得同时给孩子多接触紫外线，帮助钙的吸收，如果您光给孩子补，而且超量的话，孩子不吸收，排泄掉，其实还是白白补了。

The experiments of sterilization showed sterilization with ultraviolet ray, fumigation with formaldehyde and spray with carbolic acid were abviously effective to inhibit the growth of these kinds of mould.

紫外线照射、甲醛熏蒸及石炭酸喷雾对上述几类霉菌均有较好的抑制作用。

The residue obtained by pyrolyzing different time was analyzed by elementary analyzer and particle analyzer; Liquid produced by extracting the residue for 24h with Soxhlet extractor through toluene and carbon bisulfide were also resolved by gas chromatography and mass spectrometry, ultraviolet-visible spectrophotometer and Fourier transform infrared spectrometer.

实验首先对煤进行热解，然后对作用不同时间的煤热解残渣进行元素分析和粒度分布分析，并用有机溶剂甲苯和二硫化碳对热解残渣采用索氏提取器抽提24 h，将所得提取液采用紫外-可见光谱仪、红外光谱仪和气质联用仪等手段进行表征。

Objective To explore the mechanism of ultraviolet-induced fibroblast apoptosis and the protective effects of EGCG, a major green tea catechin, on it.

目的探讨紫外线诱导真皮成纤维细胞凋亡的发生机理以及绿茶多酚的主要成分表没食子儿茶素没食子酸酯对凋亡的保护作用。

We did not find the same ultraviolet cathodoluminescence peaks with natural diamonds, and believe that they may be characteristic peaks and valuable fingerprints of Chatham synthetic diamonds.

这些紫外阴极发光谱在天然钻石和人工处理后的天然钻石中都没有发现，可能是Chatham合成钻石的特徵谱，因而可能具有一定鉴定价值。

A suit of computer control spectrum quantitative analysis system has been successfully performed on the wave bands from ultraviolet to infrared of cathodoluminescence.

中文摘要：组装调试成功从远紫外到中红外波段阴极荧光计算机自动控制定量光谱分析系统。

After being perfected, the technology of ultraviolet cathodoluminescence spectra might become an effective method for differentiating synthetic diamonds and natural diamonds, or synthetic diamonds from different company, or even synthetic diamonds from the same company but from different crops.

经进一步完善后，紫外阴极荧光谱技术有望成为鉴别天然和合成钻石、不同公司合成钻石或同一公司不同批次合成钻石的有效方法。

The very good watertightness seals completely sex and anti- chemistry causticity, anti- ultraviolet raysunshine

极佳的防水密封性及抗化学腐蚀性，抗紫外线

We provide led lamp - house module with advance design . our product are easy to be used and maintained . they are water proof , ultraviolet radiation resist and cauterize resist

我们生产的led产品光源模块采用先进的设计理念，按照使用维护各个环节都非常简便，达到完全防水，防紫外线，防腐蚀。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。