查询词典 UV

UV and NTG mutant YT253 is screened from monoploid YT16, with selecting index hexokinase and ergosterol has increased 200% and 75% respectively.

将单倍体菌株YT253的呼吸缺陷型HXQ_4和耐45℃高温但产酒率低的葡萄酒酵母No.30-1的单倍体进行有性杂交。

The HL and its complexes are characterized by means of IR and UV spectra.

通过红外和紫外光谱进行表征，研究了它们的性质。

Is. The Company is production-oriented enterprises, Main products for the ultra-violet disinfection lamp (including all types of cold, hot cathode UV germicidal lamps).

本公司为生产型企业，主营产品为紫外线杀菌灯（包括各类冷、热阴极紫外线杀菌灯）。

These results indicated that a well structured anatase TiO2 was obtained by impregnation method under 500℃. Flow rate, in the activity test, could be neglected for mass transfer effects. As a matter of fact, relative humidity played the most important role in this reaction. The highest removal efficiency was obtained while relative humidify of 56.8%. Water molecules are sources of ; however, excessive water molecules could inhibit reactions by competing activity sites with organic containments. In the regeneration test, photocatalyst could be reactivated through a running water vapor with UV light illumination process.

研究结果指出，以含浸法制备之触媒於500℃锻烧下，具有良好的锐钛矿晶体结构；另外在活性测试的部份，流量的增加，污染物之去除效果不受影响，所以本实验选择以200ml/min之流量可忽略质传影响；湿度扮演重要的角色，当RH=56.8％时去除效率最高，主要因水气是产生氢氧自由基的主要来源，但是过多之水气可能与有机物竞争触媒表面上的活性位置，因而抑制反应的进行；初使浓度对去除率之影响中得知，初使浓度的高低不会影响触媒对有机物的催化能力，实验使用之触媒量适合催化200~250ppm之有机物，可藉由增加触媒量提高对有机物之催化能力；此外再生的测试，触媒可经由连续曝水及紫外光的照射，使触媒恢复原有的活性，可再次利用。

Being an excellent hydrator and UV light absorber.

是极棒的保湿剂和紫外光吸收剂。

Being an e xcellent hydrator and UV light absorber .

作为一个出色的水化物和紫外线吸收剂。

A high-yielding mutant Rhizopus arrhizus R4 producing γ-linolenic acid was successfully obtained when the original strain Rhizopus arrhizus R0 was treated by UV,and by the screening methods of resisting maleic hydrazide.

以少根根霉R0为出发菌株，利用紫外诱变结合失水苹果酰肼筛选的方法，选育出突变株R4，摇瓶培养菌体油脂含量35.55%，其中GLA占油脂的12.5%，比原始菌株油脂含量提高了93.94%，GLA提高了276.5%。

The new compound,2- oxo-propionic acid p-carboxylphenyl hydrazone,was synthesized by the condensation reaction of 2- oxo-propionic acid and p-carboxylphenyl hydrazine which was prepared from p-aminobenzoic acid by diazotization and reduction.

以对氨基苯甲酸为原料，经过重氮化反应和还原反应，合成了对羧基苯肼(2)；2与2-羰基丙酸缩合得到新化合物2-羰基丙酸缩对羧基苯腙，其结构经UV，荧光光谱，1H NMR，13C NMR，IR和元素分析表征。

Benzaldehyde nitrogen mustard isonicotinoyl hydrazone was synthesized according to literature method. The copper , cobalt , nickel , chromium , iron , zinc and cadmium complexes of it were prepared and characterized by elemental analysis, IR, UV-vis, NMR and EPR spectra. The cytotoxicity effect of the complexes was examined on SMMC-7721 cell line. Results show that the complexes have definite antitumor activity and the synergic effect between chromium and the ligand.

依照文献合成了异烟肼苯甲醛氮芥腙及其铜、钴、铬、镍、铁、锌和镉配合物并用元素分析、红外、电子光谱、核磁共振及电子顺磁共振光谱，对这些配合物进行表征，确认了它们可能的立体结构，并研究它们对SMMC-7721人肝癌细胞的作用，结果表明它们均有一定的抗肿瘤作用，发现铬与配体存在有协同作用。

It is generally accepted that UV irradiation generates active oxygen species including hydrogen peroxide and superoxide ion.

普遍认为紫外线辐射产生活性氧，包括过氧化氢和超氧离子。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐