查询词典 ultraviolet radiation

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。

Methods The resinic artificial teeth were deposited with 50nm or 100nm nanometer amorphous diamond film after pretreated with ultraviolet radiation or polarization.The effect of different methods of pretreatment and thickness of nanometer amorphous diamond films on the wearing resistance of resinic artificial teeth was evaluated.

分别用极化和紫外光照射的方法对人工牙进行预处理后，在其表面分别镀制50nm和100nm的纳米非晶金刚石薄膜，通过对其耐磨性能的测试，评价不同预处理方法和不同厚度薄膜对提高人工牙表面耐磨性能的影响。

The study evaluated the influence of the two different polyol's raw material origins and the different dispersing additives in the polyurethane coatings formulations on the weathering resistance by glossmetry, spectrocolorimetry, chalking test, infrared spectroscopy etc. The influence of light stabilizer and dispersant on the degradation characteristerics of polyurethane coating has also been evaluated. Ultraviolet radiation from sunlight causes the chalking of resin and the fading of pigment by breaking down the chemical bonds in coatings.

本实验将配制成不同灰色聚氨基甲酸酯涂料配方，加入硬化剂后涂装在试片上，待自然风乾后，制成不同配方涂膜试片，进行加速风化耐候利睑、光泽度、分光色差、粉化、红外线光谱仪等测试，探讨不同的聚醇树脂原料来源，与不同的润湿分散添加剂种类，对於聚氨基甲酸酯涂料耐候性质的影响。

Mechanical properties of homopolymerized and copolymerized polypropylenes were compared and effect of ultraviolet radiation on their mechanical properties, infrared spectrum and X-ray diffraction was studied.

对比了均聚级和共聚级聚丙烯的力学性能以及紫外辐照对其力学性能、红外光谱和X射线衍射的不同影响。

The mutation and the screening of the original fungus were carried out by the ultraviolet radiation method to obtain a mutant species UV-A that can depredated the crude protein in the rape cake to 15.46%,which is 1.4 times that of the original fungus.

采用紫外照射法对原始菌株进行诱变和筛选，得到一株降解饼粕中粗蛋白能力较强的变异菌株UV -A ，能使饼粕中粗蛋白的含量降到15 。4 6 %，是原始菌株的1.4倍。

A young, massive star in that cluster is the likely source of energetic ultraviolet radiation that ionizes the hydrogen gas in the Flame Nebula.

一个年轻且重质量的星球最有可能是高能的紫外线来源，游离火焰星云内的氢气。

Ultraviolet radiation emitted from the remaining hot core of the star ionizes the ejected gas shells, causing them to glow.

由遗留的炽热星核发出的强紫外辐射电离了喷出的气体外壳，激发它们发出辐射。

The plasma lamp emits ultraviolet radiation for irradiating the substrate in the processing space.

该等离子体灯发射紫外辐射以照射处理空间中的基质。

Recent research suggests the flush of ultraviolet radiation jump-started the patients' immune systems by increasing the production of vitamin D, which helped to cure the disease, Kappelman said.

最新研究表明紫外线照射后通过产生较多的维生素D快速激活病人的免疫系统，从而有助于治疗该病，Kappelman说。

Fluorescence occurs when ultraviolet radiation from just outside the visible spectrum is absorbed and re-emitted as visible light,thus increasing the total amount of light refected from a surface.Fluorescent brightening agents are commonly added to paper and boards to make them brighten and whiter and to increase the possible density range that can be achieved when printing on them.

荧光发生时，紫外线辐射从外面可见光谱吸收和再音量为可见光，从而增加总额轻refected从surface.fluorescent增白剂补充常用纸张和议会，使他们 brightenandwhiter，并把可能的密度范围时，才能得到印刷出来。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新