查询词典 Ultraviolet

A photochromic material, for example, changes its color in relation to the amount of ultraviolet radiation on its surface.

比如，热电材料实际上就是由包括一层半导体材料在内的几层不同材料组成的。

When applying this instrument to observe or photo the bands of DNA and RNA, the distictness can be compared with that of same type instrument produced abroad and the shadow of the light tubes which is always appeared on the photofilm will be wliminated because the ultraviolet light with various wavelength is applied in this instrument.

对 DNA 和 RNA 的条带进行观察和拍摄时，因采用各种波长紫外光，所以其清晰度可接近国外同类仪器的水平，并排除可在照相底片上出现灯管阴影的现象。

The light intensity to elicit the male's phototactic response was not significantly different in these three time periods. In terms of action spectrum, both male and females are more sensitive to ultraviolet light than to visible light, especially the spectral region between 330 and 340 nm for the females and 370 nm for the males.

台湾铗蠓成虫对短波长之紫外光激较敏感：雌成虫之最敏感波长为330~340nm，而雄成虫为370 nm，显示雌、雄虫皆较偏好紫外光，但有同的偏好波长。

Picolinic acid∶Eu3+ complex synthesized in aqueous solution was determined by DTATG, ultraviolet absorption spectra and infrared spectra.

通过差热－热失重、红外光谱和紫外光谱等测试手段，对溶液中合成的吡啶－2－羧酸∶Eu3＋配合物进行了表征，并且通过原位合成方法在SiO2凝胶中合成了吡啶－2－羧酸∶Eu3＋配合物，与溶液中合成的吡啶－2－羧酸∶Eu3＋配合物进行了对比。

Determination of Polycyclic Aromatic Hydrocarbons in Drinking Water by Liquid-Solid Extraction and HPLC with Coupled Ultraviolet and Fluorescence Detection.

测定多环芳烃的饮用水中液固萃取和高效液相色谱耦合紫外线和荧光检测。

Determination of Polycyclic Aromatic Hydrocarbons in Drinking Water By b Liquid-Liquid Extraction and HPLC with Coupled Ultraviolet and Fluorescence Detection.

测定多环芳烃的饮用水中的B液液萃取和高效液相色谱耦合紫外线和荧光检测。

In the preformulation study, the ultraviolet spectrum and HPLC methods for the assay of α-asarone were established firstly and then the physicochemical properties, especially the octanol/water partition coefficient and the solubility in various solvent systems such as alcohol, PEG 400, IPM, octanol were examined. The prediction permeability was then compared with actual transdermal parameters obtained from the in-vitro diffusion study , and feasibility of drug transdermal absorption was then analyzed.

在制剂开发的处方前研究工作中，首先建立了α-细辛醚的紫外及HPLC分析方法，测定了药物的油水分配系数及在生理盐水、各系列浓度的乙醇、PEG400、肉豆蔻酸异丙酯、正辛醇等溶媒中溶解度；其次，确立了药物体外经皮渗透研究的方法，并考察溶媒及促渗剂(乙醇、丙二醇、肉豆蔻酸异丙酯等)对药物体外经皮渗透性能的影响，计算药物经皮渗透的各参数，根据药物的药物动力学参数，分析了药物经皮吸收的可行性。

Simple comparator circuit is designed and ultraviolet intensity is displayed by LED presentatively.

实际测量的结果表明：仪器对日光中紫外线指数的测量是准确可靠的。

Electrochemical impendance spectroscopy,ultraviolet spectroscopy,salt fog test,chemical resistance,water proofness and mechanical performances were all employed to study its properties.

采用纳米TiO2、缓蚀剂BTA及助剂等对水性丙烯酸乳液改性，制成铜和铜合金防蚀封护剂。

The anodic oxidation reactions of butynediol and propiolic alcohol in the bright nickel electroplating were studied using ultraviolet spectrophotometry.

采用紫外分光光度法研究了丁炔二醇和丙炔醇在光亮镀镍过程中的阳极氧化反应，以期进一步认识添加剂在电镀过程中的作用机理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。