查询词典 Ultraviolet

By infrared spectra and ultraviolet spectra, mechanism of bio-bleaching was studied preliminarily. The result showed that the content of chromophoric group and lignin in bleached pulps was decreased by enzyme process.

通过红外光谱和紫外光谱研究了生物预处理的漂白机理，结果表明：酶处理可减少漂后纸浆中发色基团和木素的相对含量。

Sliver nanorods and nanoprisms were obtained under 253.7nm and 365nm ultraviolet irradiations, respectively, while nanoprisms, nanorods, nanocubes and nanospheres coinstantaneous appeared under 200~2000nm broad band irradiation.

波长为253.7nm的光源可诱导生成棒状银纳米粒子，365nm波长的光源诱导生长截断三棱柱形银纳米粒子，而采用波长宽泛的卤钨灯照射，则可同时得到棒状、截断三棱柱、立方体及球形纳米粒子。

To remove these safety hazards, an automatic gasproducing dry powder explosion suppression system has been developed through technical improvement. The system which consists of ultraviolet sensor, controller and explosive suppressor, can be effectively used in open or half open area with some explosive gas or combustive powder.

CNG加气站现有消防设施动作时间长，不能有效防止天然气的爆炸，为此，开发研制了产气式自动干粉抑爆系统，由紫外传感器、控制器、抑爆器组成，可用于爆炸性气体场所的敞开或半敞开空间抑爆。

Results:1300 data were obtained from 225 specimens analysed.6 out of 9 pairs of compactible herbs showed wider range of overlaped ultraviolet-visible absorption peaks and relatively more identical peaks and trough and the areas under the curves showed a tendency to increase.

结果：分析225份样品，约1300个数据，9对&对药&中有6对分别显示：紫外-可见光吸收光谱峰的分布区域重叠较大；相同波峰数和相同波谷数较多；组合后吸收光谱曲线下面积增加趋势较大。

Accordingly, preventing sunlight and ultraviolet illuminate is a when prevent skin consenescence important step.

因此，预防日光和紫外线照射是防止皮肤衰老的一个重要手段。

The discrimination of Marchantia polymorpha, Marchantia convoluta and Marchantia paleacea was succeeded by Ultraviolet Absorption Spectra Lines Group.

本文建立了紫外谱线组法鉴别地钱、拳卷地钱和粗裂地钱的方法。

The content of selenium in the edible fungi including Pleurotus ostreatus,Agaricus bisporus,Lentinus edodes,Plrurotus cornucopiae and Flammulina velutipes is determined by ultraviolet spectrophotometry method.

以硫酸-高氯酸作为消化剂，邻苯二胺替代3，3-二氨基联苯胺，在硒含量为6~30μg范围内对平菇所做的重复性实验和回收率实验都有较好的效果。

Helping the avoid the ultraviolet corrade.

帮助避免紫外线corrade。

Red light (640nm)accelerated cyanidine synthesis in rind and resulted in increase of the total amount.Treatments of continuous red,blue or ultraviolet lights inhibited cyanidineformation.

果实着色期红光(640nm)照射4～7天后，在直射自然光照射的环境下，可加速果皮花青素合成并使积累总量增加。

DATA SYNTHESIS: With the increase of ultraviolet radiation caused by environmental pollution, DNA in human epidermal cells is damaged. Cyclobutane pyrimidine dimmer and 6-4 photoproducts are the main forms of DNA lesions.

资料综合：环境污染使得紫外辐射增强，而紫外线辐射对机体表皮细胞的DNA具有损害作用，可导致环丁烷嘧啶二聚体和6-4光产物的形成。

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。