查询词典 aromatic

KDML 105, a well known traditional Thai jasmine rice variety, is sweet aromatic rice. Although rice aroma combines more than 200 volatile compounds, a compound named 2-acetyl-1-pyrroline (2AP) is the main constituent. The aromatic 2AP has also been found in other cereals, pandan, bread flower, fungi and bacteria.

泰国农业大学网站消息，众所周知，KDML 105是一个特异的泰国芳香水稻品种，尽管稻米的香味是由200多种不稳定的化合物形成，但其中一种叫乙酰基吡咯啉（2-acetyl-1-pyrroline）的化合物是这种香味形成的主要成分，在其他谷类、班兰、真菌和细菌中也发现了这种化合物。

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

A new oscillographic potentiometric kinetic method for determining super trace aromatic amine was developed, based on the brominating reaction of aromatic amine and bromine.

将动力学分析法与示波电位法相结合，利用KBrO3与KBr的反歧化反应和溴代反应体系，提出了测定痕量芳胺的新方法。

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。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。