Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.

1、

One exception is the decarboxylation of aromatic carboxylic acids.

芳香羧酸进行脱羧反应是一个例外.

——辞典例句

2、

It has an agreeable aromatic smell.

它有一种好闻的香味.

《现代汉英综合大词典》

3、

Aromatic capsules are great for easing the discomfort of a stuffy nose.

芳香胶囊对缓解鼻塞有奇效。

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4、

Its activities include base chemicals ( olefins and aromatics ) as well as polyethylene, polypropylene and styrenics.

道达尔石化的业务包括基础化工 ( 烯烃和芳香烃 ) 以及聚乙烯、聚丙烯与苯乙烯类产品.

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5、

Through comparative experiments, sterilizable solid aromatics were trial-produced, and a satisfactory result was obtained.

通过实验、比较,我们设计并试制了可消毒的固体芳香剂, 获得较满意的结果.

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6、

This paper discusses the effects of the boiling range of the reforming feedstock on aromatics extraction.

本文论述了重整原料油馏分范围对芳烃抽提效果的影响.

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7、

Production technologies of C 8 aromatics isomers are introduced. The progress xylene separation technologies is discussed.

介绍了碳八芳烃异构体工业分离技术的现状、对二甲苯分离技术的新发展.

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8、

The exhibition delves deep into the physics, aromatics and even the timbre of flatulence.

此次展览向人们介绍了人体物理、气味甚至肠胃胀气的声音等各方面知识.

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9、

The hydrogenation of aromatics received increasingly attention recently owing to the limitation of environmental protection legislation.

因环保立法限制,芳烃加氢日益受到重视.

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10、

They continue to excite the imagination and are probably the most famous aromatics of all time.

它们持续地刺激着想象力,很可能是所有时期中最芬芳的时期.

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11、

The aromatics are, lovely and crisp, blending nicely with the wood components, without being too powerful.

清新的果香味, 中间夹有优质橡木成分, 使得香气不会很冲.

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12、

The heavy fraction of pyrolysis gasoline is potential resource BTX aromatics for the rich aromatics contents.

裂解汽油重质馏分由于含有丰富的芳香基团,可以作为增产BTX芳烃的潜在资源.

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13、

Incense and Agarbatti, Carpets, Rugs, Mats and Durries, Essential Oils and Aromatics.

采购产品香和香脂, 地毯, 毯子, 垫和棉花地毯, 香精油和芳香剂.

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14、

According to PONA ( Pareffins, Olefins , Naphthenes, Aromatics ) analytic results of FCC gasoline, some model compounds were selected.

根据FCC汽油的PONA ( Paraffins, Olefins, NaphthenesandAromatics ) 分析结果, 确定了不同结构的FCC汽油模型化合物.

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15、

Saturation and aromatics affect the ductility of asphalt at low temperature.

饱和烃和芳香烃影响沥青的低温延度和粘结性.

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16、

This article reviews researches in various catalysts for alkyl aromatics peroxidation.

烷基芳烃过氧化反应是酚类合成反应的关键步骤.

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17、

Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.

芳烃加氢饱和及开环反应是一种提高柴油十六烷值的有效途径.

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18、

The course of aromatization reaction of amylene was studied by a high pressure micro reaction-chromatograph.

在高压微反 - 色谱仪上考察了戊烯的芳构化反应历程.

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19、

Non-oxidative aromatization of methane is significant in the fields of energy utilization and catalysis science.

甲烷无氧芳构化反应的研究对能源利用、催化科学均具有重大意义.

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20、

The coking and deactivation of virgin naphtha aromatization catalyst are studied on isothermal reactor.

利用等温固定床反应器研究了直馏汽油芳构化改质催化剂的结焦失活规律.

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