查询词典 Ultraviolet

Firstly, a series of organic molecules which use phthalimido group as electron acceptor, N as electron donor, COO~- as eletrofugal group were synthesized based on SET-promoted photocyclization processes. These compounds were irradiated by 500 W ultraviolet under nitrogen atmosphere in room temperature. After filtration of the photochemical character of these molecules, substrate S1 and S2 were selected as appropriate model reactants. Secondly, the monosubstituted derivatives at the 6-position ofβ-cyclodextrin were synthesized as chiral template of photocyclization.

首先，以单电子转移机理为指导，设计了一系列以邻苯二甲酰亚胺基为电子受体、N为电子给体、羧基为离去基团的光环合反应底物，这些化合物在氮气保护下以500瓦紫外光室温下进行光照反应，对这一系列的分子的反应情况进行了研究与筛选，最终选择底物S1和S2作为研究光环合反应中立体控制方法的模型底物；其次，又合成了一系列6-位单取代β-环糊精，以此作为光环合反应的手性模板。

Company's main products are: glass Xiebian machine, straight-edge, the bilateral plane, profiled machine, drilling machine, sculpture and other flowers, with the round of King Kong, resin round, wool round, water-round, round mud, bits, Polishing powder, cutting fluid; sandblasted glass used in PVC film, nozzle, spray gun, glass paint, plastic glass Edge, Mopan, the car spent round; glass cutting tools, removal tools, Vientiane, water mains, boring films, Saw Blade , Steel, cotton Jincong powder, imported UV glue, ultraviolet lamps and other glass supplies.

公司主要产品有：玻璃斜边机、直边机、双边机、异形机、钻孔机、雕刻花机等，用的金刚轮、树脂轮、羊毛轮、水松轮、泥巴轮、钻头、抛光粉，切削液；玻璃喷砂用的 PVC 保护膜、喷咀、喷枪、玻璃漆、玻璃封边胶、磨盘、车花轮；玻璃切割工具、搬运工具、万象水管、钻片、锯条、钢丝棉、金葱粉、进口 UV 胶水、紫外线灯等玻璃耗材。

As the bamboo has natural beauty efficacy, quick-drying with high moisture absorption, high permeability; drape, elasticity, abrasion resistance, dyeability trilingual; luster bright, cool touch, such as silk soft; anti-ultraviolet; mothproof mold, has a good natural anti-bacterial inhibitory effect, conform to the pursuit of health and comfort of the modern trend.

由于竹子有天然的美容功效，具有高吸湿性快干性、高透气性；悬垂性、回弹性、耐磨性、染色性俱佳；光泽亮丽，手感清凉爽滑、如丝柔软；抗紫外线；防霉防蛀，具有良好的天然抗菌抑菌效果，顺应了现代人追求健康舒适的潮流。

In the paper, the multidentate carboxylic acid ligands were used to combine with Cd, resulting in the three dimensional MOCPs single crystals—C12H16CdN2O8, with a low temperature hydrothermal synthesis method. The sample was characterized with IR spectra to affirm the organic groups in the frameworks, single-crystal X-ray diffraction to determine the crystal structure and composition of the frameworks, N2 adsorption isotherms at low temperature to measure the specific surface area and pore size distribution, and with TGA/DGA analysis to scale the thermal stability. Furthermore, the dissolution property and the photocatalytic activity of MOCPs under the ultraviolet ray condition were explored.

本文用低温水热合成法，用多齿羧酸配体异烟酸和Cd配位合成出[Cd(C6H4O2N)2(H2O)4]∞三维晶体并进行了表征：采用红外光谱法确认骨架中的有机官能团；用单晶X射线衍射分析法测定MOCPs的晶体结构，并确定其骨架的组成；通过低温氮气吸附等温线测定了其比表面积和孔径分布；以热重分析和差热分析测定材料骨架的热稳定性；测定了晶体的溶解性能；最后以亚甲基蓝为目标降解物，对[Cd(C6H4O2N)2(H2O)4]∞的光催化活性及亚甲基蓝的氧化动力学进行了探索(来源：A2444BC论文网www.abclunwen.com)。

Six bacteria and five mildews have been separated from 119 strains, wliich grew well on the culture media contained lignin. The result of taxonomic identification is that XI, X2 and X3 belong to Pseudomonas, X4 and X5 belong to Xanihomonas, X6 belongs to Mycoplana. A preliminary study has been carried out on the capacity of lignin degradation of the 6strains of bacteria, and strains X2 and X4 were chose to carry out the experiments. The most favorable temperature for the 2 strains is 30癈, and the pH is 7; After being treated by ultraviolet rays, activity of all the three kinds of lignin-degrading enzyme produced by the strains can be increased greatly, the bacteria increasing rate is remarkably improved.

从119个菌株中分离筛选出了6株细菌和5株霉菌，它们可以在含有木质素的培养基上良好生长：细菌分类学鉴定结果为X1、X2和X3：假单胞菌属，X4和X5：黄单胞杆菌属，X6：枝动杆菌属；对6株细菌降解木质素性能进行了初步的研究，选定X2和X4为实验用菌种，两株菌适宜的生长温度为30℃，最适初始pH值为7；经紫外线照射诱变法处理，可使它们产生的三种木素分解酶活性均有明显的提高，细菌增长速率比诱变前明显提高。

A comprehensive survey of minerals in pollen of nectariferous plants was performed in this study.The contents of 14 mineral elements such as Fe, Zn, Cu, Mn and Se etc. in the pollen of 14 kinds of nectariferous plants: Cucumis melo L., Nelumbo nucifera Gaertn, Citrus sinensis Osbesk, Prunus armeniaca L., Rosa xanthina Lindi., etc, were detected for the first time by atomic absorption spectrophotometry, ultraviolet spectrophotometry and fluorescence spectrophotometry.

利用原子吸收分光光度计、紫外分光光度计和荧光分光光度计，测定了前人尚未测试的哈密瓜、莲、脐橙、杏及黄刺梅等14种蜜源植物花粉中Fe、Zn、Cu、Mn及Se等14种矿物质元素的含量。

A wavelet packet transform based generalized regression neural networkwas developed to process overlapping ultraviolet absorption spectra of p- nitroaniline ,o- nitroaniline and m- nitroaniline .

开发了一种小波包变换广义回归神经网络法，用于处理对硝基苯胺、邻硝基苯胺和间硝基苯胺重叠的紫外吸收光谱，达到不经预先化学分离进行同时测定的目的。

In order to improve its effect,by simulating natural enviroment and irradiating the material of FRP under water with strong ultraviolet ray for a long time,the strength change in protection and nonprotection conditions is contrasted and the weather resistance is analyzed.

纤维增强复合材料在土木工程中越来越得到广泛应用，为了更好地发挥其使用效果，通过模拟自然环境，将其材料在水下经长时间强紫外线照射，对比有保护和无保护情况下的强度变化，进行耐候性分析研究，结果表明有保护情况下强度保持率有了明显提高。

Should try one's best to fall off basking and besides except the above treating and opsonize, need to pay attention to anti-sunburning ability even if overcast, because the ultraviolet ray still may be being hit by the skin hurting you unconsciously.

除了以上的治疗和调理之外，并应尽量减少晒太阳，即使阴天也要注意防晒工夫，因为紫外线仍会在不知不觉中伤害你的皮肤。

Function: High contains rich VC component, high against the ultraviolet ray, purify poison, balance and adjust, improves the blood vessel intensity, prompt opsonize healthy energy skin nature, reach white bright outward appearance.

功 能：高度葡萄釉精华含丰富 VC 的成分，高度防紫外线作用，净化排毒，平衡调节，改善血管强度，能迅速调理健康的皮肤本质，达到亮白的皮肤外观。

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。