查询词典 aromatic properties

Through taken the measurements of pH, TOC, UV-Vis spectra and high-performance liquid chromatograph in the degrading process of solution ,it was found that the COD of dye solution increased, pH continuing declined and TOC reduced gradually. The UV-Vis spectra and high-performance shown that though dye molecules had been destroyed, Strong Chromophore Azo Double Bond of dye was certainly under attack, the big conjugated system was vandalized and dye molecules were decolorized degradation, but they were not completely changed into carbon dioxide and other inorganic matter by mineralization, it appeared accumulation of aromatic ring and double benzene nucleus, so it is thus evident that complete destruction of aromatic ring is more difficult than the double benzene.

通过测定直接大红染料脱色过程中的溶液pH、TOC、紫外可见光谱图和高效液相色谱图可知，在脱色处理时间(6h)范围内，染料溶液的COD值增大， pH值持续下降，TOC值逐渐降低，结合紫外可见光谱图和高效液相色谱图，说明染料分子虽然已经遭到破坏，染料分子内强生色基团偶氮双键确实遭到攻击，大的共轭体系被破坏，染料分子被脱色，却没有完全被彻底矿化成二氧化碳等无机物，出现了芳环和萘环结构的累积现象，可见完全破坏芳环比破坏偶氮双键发色团更困难。

Our group first reported a novel dialkylation reaction of alkyl zinc iodides with aromatic aldehydes and an olefination reaction of benzyl zinc bromides with aromatic aldehydes respectively.

我们实验室分别首次报道了在过渡金属络合物催化下带官能团有机卤化锌试剂与芳香醛的双烷化反应和烯基化反应。

Aromatic. Term applied to wine with a very pronounced aroma, usually made from grapes with aromatic flavour and aroma such as the Muscats.

点落果香的：用于描述蕴含着极显著果香的葡萄酒，这些葡萄通常是以果香浓郁的葡萄如各种玫瑰香型的葡萄酿制。

Aromatic. Term applied to wine with a very pronounced aroma, usually made from grapes with aromatic flavour and aroma such as the Muscats.

果香的：用于描述口感强烈花果香浓郁的葡萄酒，这些葡萄酒通常是以果香浓郁的葡萄如各种玫瑰香型的葡萄酿制。

Aromatic. Term applied to wine with a very pronounced aroma, usually made from grapes with aromatic flavour and aroma such as the Muscats.

果香的：用於描述蕴含著极显著果香的葡萄酒，这些葡萄通常是以果香浓郁的葡萄如各种玫瑰香型的葡萄酿制。

Aromatic. Term applied to wine with a very pronounced aroma, usually made from grapes with aromatic flavour and aroma such as the Muscats.

tion and to the odou 果香的：用于描述蕴含着极显著果香的葡萄酒，这些葡萄通常是以果香浓郁的葡萄如各种玫瑰香型的葡萄酿制。

Aromatic.Term applied to wine with a very proouced aroma,usually made from grapes wieh aromatic flavour and aroma such as the Muscats.

果香的：用于描述蕴含着级显著果香的葡萄酒，这些葡萄通常是以果香浓郁的葡萄如各种玫瑰香型的葡萄酿制。

The main aromatic production technologies are reviewed which included catalytic reforming, aromatic extraction, toluene disproportionation and transalkylation process, isomerization of xylenes and separation of PX.

分析了近年来国内外聚酯和对二甲苯的供需状况及未来需求发展趋势；介绍了当前芳烃主要生产技术，包括催化重整、芳烃抽提、甲苯歧化与烷基转移、二甲苯异构化和二甲苯分离等；指出了扩大芳烃原料来源、通过催化剂的改进提高甲苯歧化过程的对二甲苯选择性、提高C9及以上重芳烃处理能力、提高乙苯转化率等将是未来芳烃技术的主要发展方向。

The product chorismate of this pathway is precursor to the synthesis of the aromatic amino acids phenylalanine,tyrosine,and tryptophan as well as other essential aromatic secondary metabolites such as ubiquinone,menaquinone and vitamin K.

芳香族氨基酸苯丙氨酸、酪氨酸、色氨酸和其它一些必需代谢物如泛醌、维生素K2类、维生素K的起始物是莽草酸途径所产生的分枝酸。

The novel long carbon chain fused ring semi-aromatic nylon PA12N takes the long carbon chain aliphatic diamine 1, 12-twelve carbon diamine and fused ring aromatic serials dibasic acid 2,6-naphthalenedicarboxylic acid as raw materials and is made by the processes of salifying, prepolymerizing and polymerizing after solid phase.

它以长碳链的脂肪族二元胺1，12-十二碳二元胺和稠环芳香族二元酸2，6-萘二甲酸为原料，经过成盐、预聚合、固相后聚合制得。

Poorer people and dirty industries congregated in the east; the better-off lived and worked in the west.

穷人和脏的工业聚集到东部，富人则在西部生活和居住。

One reason is the relative concern in different risk assessment contexts for relevance and independence from biases.

原因之一是因偏见而造成的相关性和独立性的不同风险评价背景中的相应考虑。