十二醇
- 与 十二醇 相关的网络例句 [注：此内容来源于网络，仅供参考]
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The cis-decalin 79 was obtained from 2-methoxy-4-methylphenol (77) via a sequence of reactions involving intermolecular Diels-Alder reaction of masked o-benzoquinone derived from 77 and ethyl vinyl ketone, silyl enol ether formation and Cope rearrangement.
第一部份：以2-甲氧基-4-甲基酚(77)为起始物，经由二乙醯基亚碘苯氧化、分子间Diels-Alder反应、烯醇矽醚的形成及Cope重排反应得到具有十氢萘骨架化合物79。
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Aluminum ; Acetone ; 2; 15-Hexadecanedion ; Computer simulation ; Aldol condensation
氧化铝；丙酮； 2； 15－十六烷二酮；计算机模拟；醛醇缩合
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In order to study the aldol condensation of 2,15-hexadecanedione on the surface of aluminium, the intermolecular condensationmechanism of acetone occurring on aluminum was simulated by usingsemi-empirical AM1 method embodied in MOPAC 6.0 program package.
为了研究2，15-十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理。
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In order to study the aldol condensation of 2.15-hexadecanedione on the surface of aluminium, the intermolecular condensation mechanism of acetone occurring on aluminum was simulated by using semi-empirical AM1 method embodied in MOPAC 6.0 program package. The optimized structures and geometry parameters of 5 transition complexes and 4 intermediates were given.First, 2 molecules of acetone coordinated with aluminum by electrostatic attraction.One atom of hydrogen of acetone migrated to aluminum because of t...
为了研究2，15－十六烷二酮在氧化铝表面的环合机理，选择小分子丙酮为模型化合物，用量子化学半经验AM1方法研究双分子丙酮在氧化铝表面的醛醇缩合机理，给出了反应过程中的5个过渡态和4个中间体的结构和几何参数，该催化反应可以认为是氧化铝分子与两分子丙酮分子发生静电络合作用，然后借助氧原子的负电荷导致脱氢并实现缩合，根据中间体的能量变化，推测有较稳定的铝复合物生成。
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Objective:To evaluate the effects of octacosanol on military operation capacity at high altitude.
目的：评估二十八烷醇在提高高原军事作业劳动能力中的作用。
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Methods rats were forced to swim in cold water daily for 9 days,behaviors in the open-field test,serum noradrenalin,dopamine and 5-hydroxytryptamice,and ascorbic acid in adreanal gland were determined.
采用强制冷水游泳模拟慢性疲劳发病过程的动物模型，从应激角度观察应激导致动物疲劳时，其大体行为及神经内分泌系统的变化和二十八烷醇对该变化的影响。
- 推荐网络例句
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The objective is to subjugate and discourage the people, because that allows the elite to continue to rule unopposed.
其目的是压制和打击人民的积极性，因为这可以让实权派继续统治不会沦为反对派。
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GOD,this is the second time you vanquished me!
天啊，这是第二次你打败了我！
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So a kind of strong antagonism permeated in the relations of two countries.
所以两国这一时期的政治关系始终弥漫着一种强烈的对抗情绪。