查询词典 uv

Root activity of cucumber seedling was inhibited by UV B and the inhibition degree increased with increasing of UV B radiation time.

在植物生长室中，UV－ B辐射明显降低黄瓜幼苗的根系活力，抑制程度随辐射时间的延长而增强。

Furthermore, cyclic transformation of Fe2+ with Fe3+ as well as degradation of Rhodamine B in the UV/Fenton system were investigated, by maintaining 0.180 mmol L-1 dissolved total Fe and ordinary UV irradiation throughout the whole reaction, while adding 1.7 mL 30% H2O2 into the residual solution four times in sequence.

研究了总铁含量维持在0.180 mmol·L-1、保持紫外光照射、4次向同一UV/Fenton体系中添加1.7 mL H2O2，每次反应后Fe2+/Fe3+的循环转化规律和溶液的脱色效果。

The research indicates that:(1) detecting λmax (277nm) can identify Metronidazole Buccal Tablets prepared by Chongqing Medical College;(2) detecting λmax (321nm) and λmin (265nm) can identify Metronidazole Disodium Phosphate for Injection prepared by Chongqing Medical College;(3) detecting tr (6.7min) in HPLC-UV spectrum can identify Ceftriaxone Sodium for Injection prepared by Chongqing Keru Pharmacy Co.;(4) detecting tR (10.2min) 6.7min in HPLC-UV spectrum can identify Clarithromycin Tablets prepared by Harebin Yida Pharmacy Co.;(5) detecting λmax (254nm) can identify Potassium Sodium Dehydroandroan Drographolide Succinate prepared by Hong Kong Yaohen Co..

结果表明：①测定紫外最大吸收波长λ_(max277nm可鉴别重庆医科大学医药研究所制备的甲硝唑口颊片；②测定紫外最大吸收波长λ_(max321nm和最小吸收波长λ_(min265nm可鉴别重庆医科大学医药研究所制备的注射用甲硝唑磷酸二钠；③测定HPLC-UV中的保留时间(t_R6.7min)可鉴别重庆科瑞制药股份有限公司制备的注射用头孢曲松钠；④测定高效液相色谱的保留时间(t_R10.2min)可鉴别哈尔滨伊达制药厂提供的克拉霉素片；⑤测定紫外最大吸收波长(又max254nm)可鉴别香港耀恒公司提供的炎琉宁。

The epicotyl of broad bean was irradiated for 7 h by 1.02,3.03,4.52 kJ·m -2 UV B respectively in the ambient condition of 70 μmol·m -2 ·s -1 photosynthetically active radiation in the growth cabinet.

根据蚕豆丙二醛、抗坏血酸和 UV- B吸收物的含量变化，来测试激光对 UV- B照射蚕豆的上胚轴的保护作用。

The UV-Visible absorption spectra and the fluorescence emission spectra of sixteen tetra-substituted metallo-phthalocyanine complexes {R4PcM, where R=2-［4-(2-sulfonic ethyl)piperazin-1-］ ethoxyl, 2-(piperidin-1-yl)ethoxyl; substitution position at α-position and β-position of phthalocyanine ring; M=Zn, Ni, Coand Cu} were measured.

报道了16种含哌嗪或含哌啶四取代酞菁金属配合物{R4PcM， R=2-［4-(2-磺基乙基)哌嗪-1-基］乙氧基、 2-(哌啶-1-基)乙氧基；取代位置分别在α位和β位； M=Zn， Ni， Co， Cu}的UV-Vis吸收光谱和荧光发射光谱的测定，探讨了中心金属离子、取代基种类及其取代位置、溶剂等因素对酞菁金属配合物UV-Vis吸收光谱和荧光发射光谱性质的影响。

We provide this UV coating service to any fancy faced plywood , adhesive paper backing veneer and un-adhesive paper backing veneer products. Coating not only can let the veneer skin layer be protected and beautiful but also can save the extra payment of painting.

我们提供UV紫外线涂装的服务，在贴皮表层涂上UV光感漆，涂装可以使产品受到保护且拥有光泽与美观，这道手续也可省去您额外的油漆施工。

The result showed that the enhanced UV-B radiation significantly affected the flowering process and greatly decreased the number of the differentive and propagative floweret.

我国也开始进行这方面的研究。目前有相当一部分研究集中于UV -B增加对植物伤害机理的研究，也有少量关于UV -B增加对作物产量影响的研究。

UV-B radiation induced significant changes in the chemical composition of root, stem, and leaf. Under UV-B radiation, the soluble protein, lignin, and fat contents in leaf, lignin content in root, and cellulose and lignin contents in stem were increased, while the starch content in leaf and the soluble sugar, starch, and fat contents in stem were decreased significantly (P.05), compared with the control.

UV-B辐射处理下根、茎、叶部所检测的大多数化学成分与对照相比均有显著变化：叶片中可溶性蛋白、木质素和脂肪，根中木质素，茎中纤维素、木质素含量在辐射处理下显著高于对照；叶片中淀粉，茎中可溶性糖、淀粉和脂肪含量在辐射处理下显著低于对照(P.05)。

Under the limiting constrained conditions, an attempt to improve ship hull form of minimized wavemaking resistance is described by taking improved Michell integration as an object function and UV as an optimized design variable that is a mapping transformation function for the harmonizing and the fairing of the form variation.

在极限约束条件下，基于船体型值与UV度的映射函数，用UV度作为优化设计变量，以改进的Michel积分为目标函数，求得具有很好的协调性和工程光顺性的最小兴波阻力船型。

This paper emphasizes the mechanism of UV-cured, the mechanism of the pigment's color change, the effect of pearl pigment's mosaic gold. The conclusion is reached through the theoretical analysis of the experiment phenomena and data.

文章着重论述了紫外光固化涂料的固化机理、温变颜料的变色机理，珠光颜料的彩金效果再现，颜料对UV光油的西安理工大学硕士学位论文固化的影响以及添加合适光引发剂来调整UV光油的固化速度等问题，并通过实验现象和试验数据进行了理论分析，得出结论。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。