| 1. | Direct alkoxylation of aromatic compounds is virtually unknown .
事实上还不知道芳香族化合物的直接烷氧基化的方法。 |
| 2. | The majority of nonaromatic compounds do not have such high c∶h ratios .
大部分非芳香族化合物的CH比例没有这样高。 |
| 3. | The majority of nonaromatic compounds do not have such high c h ratios
大部分非芳香族化合物的c h比例没有这样高。 |
| 4. | They found that it was composed of various aromatic compounds and sulfides in addition to large quantities of carbon
原来它的组成除了大量的碳，还有各类芳香族化合物和硫化物。 |
| 5. | The results showed that in scco2 cyclotrimerization of terminal acetylenes was carried out smoothly to regioselectively afford the corresponding benzene derivaties using pdbr2 as the catalyst
研究结果表明：二氧化碳介质中使用溴化钯为催化剂可以顺利地催化炔烃发生环三聚反应，区域选择性生成含苯环芳香族化合物。 |
| 6. | Otsuka chemical employs an electro - organic synthesis which is a method for easily controlling oxidation - reduction reactions and is applied to selective oxidation reactions , unique reductive reaction and special alkylation of aromatic side chains
大冢化学的各种芳香族化合物在精细化工领域内，作为医药中间体、农药中间体和功能性高分子原料，是具有各种各样用途的化合物。 |
| 7. | The scent in green tea a group of things with common features compound can be deliquescent adipose , change chaotic to go be bored with prevents adipose inside the body that accumulate sluggish , and vitaminic b1 , c and caffein can promote gastric juice to secrete , peptic with disappear fat
绿茶中的芳香族化合物能溶解脂肪，化浊去腻防止脂肪积滞体内，而维他命b1 、 c和咖啡因能促进胃液分泌，有助消化与消脂。 |
| 8. | The biochemical reaction in liquor - making mainly included the degradation of macromolecular substances such as the degradation of amylum and protein , the biochemical changes of micromolecular substances such as glycolysis of glucose ( emp approach ) and reconvertion of pyruvic acid , and the formation of flavoring substances such as the production of higher organic alcohol , maillard reaction , and the formation of aromatic compounds
白酒酿造过程中的生物化学反应主要包括：大分子物质的降解，如淀粉的降解和蛋白质的降解；小分子物质的变化，如葡萄糖的酵解（ emp途径）和丙酮酸的再转化；香味物质的生成，如高级有机醇生成、美拉德反应和芳香族化合物的形成。 |
| 9. | The toxicities of a batch of chlorinated aromatic commpounds to selenastrum ca pricornutum were determined , and relationships between their chemical structure and toxicity data were investigated based on molecular connectivity indices . fur thermore , leave - one - out tests were applied to examine the robustness of the pre diction model
本文测定了一批氯代芳香族化合物对羊角月牙藻的急性毒性，运用分子连接性指数分析了化合物结构与其毒性之间的定量关系，并用逐一抽取法检验比较了模型的稳健性 |
| 10. | Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp . by gas chromatography - mass spectrometry ( gc - ms ) analysis
摘要采用气相色谱质谱联用分析技术从中新世水杉叶片和白垩纪松型球果两种裸子植物化石中分别鉴定了51个和19个挥发性成分，类型涉及烷烃、烷烯、烷醇、长链脂肪酸及其酯、邻苯二甲酸酯、菇类和芳香族化合物。 |
