查询词典 aromatic

Discreet yet intense, Colonia Intensa immediately captures the senses with its citrus top notes, middle aromatic tones, and a tactile, luminous, spicy and smoky woody base.

谨慎而热烈，Colonia Intensa 有柑橘芳香头调，，中调气味芳香，感觉明亮，辛辣的木本香味基调。

In an aromatic complex unit ,the main cause for decrease in hydrogen compressor load was scale formation in steam condenser .

芳烃联合装置凝汽器的结垢是氢气压缩机负荷降低的主要原因。

It is a complex variable polymer, derived from sugars via aromatic alcohols.

木质素是一种复杂的聚合物，来源于芳香醇形成的糖。

A very complex aromatic intensity with aromas of ripe compote fruits, spices and mineral nuances.

给予各种成熟浆果的多种芬芳，带有香料和矿物之嗅觉。

A study was carried out on aroma components of aromatic tobacco condensate with GC/MS.

采用GC/MS技术对香料烟浸膏的香气物质进行了研究。

Target compounds have been synthesized by condensation of the aromatic nucleus and amino heterocylcle with acyl isocyanates or acylisothiocyanates in absolutely anhydrous and aprotic solvent.

为了寻找高活性的农药品种，利用生物等排原理和亚结构连接法，对脲类化合物的母体结构进行了修饰，将芳氧羧酸类及吡唑环引入酰基脲母体结构中，利用酰基异氰酸酯与杂芳环胺类化合物在无水非质子溶剂中发生亲核加成反应，合成了四个系列21种新的酰基脲类目标化合物。

1H NMR spectroscopic analysis of aromatic protons combined with theoretical analysis of molecular structures proved the existence of two rotational isomers at 300 K, as well as a rapid interconversion equilibrium at 330 K for both compounds Ⅰ and Ⅱ. However, only one conformer exists for compound Ⅲ and puerarin containing 7-phenolic hydroxyl instead of propyl in A-ring as the case of compounds Ⅰ and Ⅱ. Based on UV-Visible absorption data of neutral and basic solutions, and on the density function calculations, the 7-phenolic hydroxyl group in A-ring was found to be more acidic than the 4'-phenolic hydroxyl group in B-ring. The mechanism of derivation reaction and the structure-reactivity relationship of puerarin as an antioxidant were further discussed.

其中7-丙基葛根素Ⅱ属于新型取代衍生物；变温1H NMR和理论计算结果表明，在300 K时，葛根素和4'-丙基葛根素以单一构型存在；而7，4'-二丙基葛根素和7-丙基葛根素则存在两种核磁可分辨的旋转异构体，当温度升至330 K时，两种异构体可以相互转化；通过对比分析葛根素及其衍生物脱质子产物的紫外可见吸收光谱并结合理论计算，确定了A环上7位酚羟基比B环上4'位酚羟基先脱去质子，并由此进一步阐明了葛根素衍生化反应机理以及在抗氧化作用中可能的活性位点和结构活性关系。

We thorough search the stable conformers of aromatic amino acids and arginine and examine the properties of the stable conformers using ab initio and DFT methods. The properties examined include the characteristics of intramolecular interactions, IR and UV spectra, temperature dependent conformer distributions, electron attachment and ionization energies, protonation/deprotonation processes.

木论文对芳香型氨基酸和精氨酸进行了理论研究，研究的性质包括几何结构、电子结构、构刑分布、电离能和电子亲和势、质子化过程、红外谱、紫外谱以及分子内相互作用等方面。

In addition, the conjugation of aromatic compounds was also in favor of the chargedispersion.

此外，芳基化合物的共轭作用也有利于离子对电荷分离。

A bitter,aromatic gum resin extracted from an Asiatic plantor any of several related plants and used in incense and medicinally as a counterirritant.

白松香一种带苦味的、芳香的树脂胶，从一种亚洲植物或者相关的植物中提炼出并用于制香和作为药用对抗刺激素

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。