查询词典 aromatic compounds

Terpenoid compounds from aromatic plants have been found to inhibit asparagine synthetase. Chemically synthesized 1,4-cineole derivatives display a degree of weed control activity.

在芳香族植物中发现单萜化合物有抑制天冬酰胺合成酶的作用，化学合成1，4-桉树脑衍生物也有一定除草活性。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。

2 Petroleum crude oil: Refers to naturally occurring crude oil that is mixtures of hydrocarbon compounds that contain mainly paraffin hydrocarbon, cycloparafin hydrocarbon, and aromatic hydrocarbon.

二石油原油：指一种源于自然界之原油，为碳氢化合物之混合物，其主要成分为石蜡烃、环烷烃、芳香烃等。你知道它的英文吗？

Experimental results showed that aerosol created by 1,3,5-trimethylbenzene photooxidation can be classify with five distinct chemical particle classes, the predominant components of these five particles are aromatic aldehyde, phenol, nitrophenol and carboxylic acid compounds.

利用该算法对OH自由基启动1，3，5-三甲苯光氧化形成的二次有机气溶胶单粒子质谱数据进行了聚类分析，在得到的五个聚类中包含了芳香醛、酚类化合物、硝基酚和羧酸等重要的光氧化产物，为研究苯系物光氧化机理提供了新的信息。

According to the experience of the research of the indoles alkaloid, we designed a series of novel compounds which contained indoles heterocyclic as the flat aromatic group, benzyloxy substituent at indoles 6 site as the nonhydrophilic group tail, carboxylic derivatives and TZDs bioisosterism substituent at indoles 2 site or 3 site as the hydrophilic group head.

于是根据我们课题组多年来对吲哚生物碱研究的经验，我们设计了以吲哚作为中间平面芳环体系，6位连接苄氧基作为疏水尾部，2位或3位连接羧酸及其衍生物、噻唑烷二酮及其电子等排体的一系列化合物。

Knoevenagel condensations of aromatic aldehydes with active methylene compounds were performed in the presence of room temperature ionic liquid without any additional volatile organic solvents.

6利用室温离子液体作催化剂，在无另加有机溶剂的条件下，考察了芳香醛和活泼亚甲基化合物的Knoevenagel缩合反应。

The basic principle of the toughening and modifying on bismaleimide resin was introduced, the characteristics and the modifying effects of the toughening and modifying with thermoplastic resin, the combination of aromatic diamine and epoxy resin, organic silicone, allyl compounds, cyanate ester resin, the blends of three-dimensional braided carbon and Kevlar fabrics and so on were discussed.

介绍双马来酰亚胺树脂增韧改性的基本原理，论述了热塑性树脂增韧改性、芳香族二胺和环氧树脂相结合增韧改性、有机硅增韧改性、烯丙基系列化合物增韧改性、氰酸酯树脂增韧改性、三维编织碳纤维和凯夫拉纤维混合增韧改性等方法的特点与改性效果。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。