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In this paper, the study progress of rhodamine dye type in recent years and the reaction mechanism and the methods of aryl methyl oxidation to the fragrant aldehyde group were firstly introduced.

在本论文中,首先介绍了近年来罗丹明类染料的研究进展和芳甲基氧化生成芳醛基的反应机理、方法。

Article 42 The state prohibits the building of small-scale production projects of paper making, leather making, printing and dyeing, dyestuff, coking, sulfur refining, arsenic refining, mercury refining, oil refining, electroplating, pesticides, asbestos, cement, glass, steel, thermal power etc.

第四十二条国家禁止新建不符合国家产业政策的小型造纸、制革、印染、染料、炼焦、炼硫、炼砷、炼汞、炼油、电镀、农药、石棉、水泥、玻璃、钢铁、火电以及其他严重污染水环境的生产项目。

The company has introduced foreign advanced printing, use of high-quality cotton yarn and environmentally friendly dyes and auxiliaries.

本公司引进国外先进的印花,使用优质棉纱和环保型染料及助剂。

A strain may be defined as an organic compound containing a benzene ring plus a chromophore and auxochrome group.

染料定义为含有苯环与呈色官能基与辅助成色官能基的化合物。

Sudan is an artificial synthetical azoic industry dye. It is forbidden to be used as food additive agent because of its potential danger to human body. However food containing Sudan was found on the market of China and some other countries in Europe and America, and has drawn extensive attention.

苏丹红是一种人工合成的偶氮类工业染料,时人体健康具有潜在危险性,被禁止作为食品添加剂使用,但在我国和欧美市场上发现了含苏丹红的食品,引起了普遍关注。

Secondly, this paper describes the effect of presence of inorganic salts namely, sodium chloride, sodium sulphate, sodium nitrate, sodium dihydrogen phosphateand and sodium bicarbonate on decolouration of azoic dye effluents by the UV-Vis /Ferrioxalate/H2O2 process.

本课题可以得到以下结论:在偶氮染料光催化氧化脱色反应中,无机盐有抑制作用,并且依其种类不同,其抑制作用亦有差异;表面活性剂对于染料的脱色降解存在不同程度上的抑制作用。

Chapter two systematical analyzed on the blue ball point writing inks with TLC, Analysed 45 various blue ball-pen ink produced by various country or area. Then classify the ball-pen into three classes and 9 sub-classes.

第二章研究了薄层色谱法鉴别蓝色圆珠笔油墨的种类,选择了合适的提取剂和展开剂,对市售的46种不同国家和地区生产的蓝色圆珠笔油墨字迹进行分析,根据圆珠笔中所含的不同类的染料将其分为分三大类,共九小类。

High initial concentration of dyestuff, supporting electrolyte, acidic and neutral conditions as well as moderate temperature are found to be favourable to enhanced performance of the cell.

结果表明:适当增加染料初始浓度和支持电解质浓度,酸性和中性条件以及适中的温度均对成对电解脱色性能有利。

Thus, in dealing with the dye wastewater containing bentonite has high application value.

由此可见,改性膨润土在处理染料废水方面有很高的应用价值。

Benzaldehyde is an important intermediate in medicine, pesticide, dye and spicery.

苯甲醛是重要的有机合成中间体,在医药、农药、染料、香料等的合成中具有广泛的用途。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。