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Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始原料,经水解、酰化、环碳酸酯化、氧化、脱碳酸酯化、酰化、环氨基甲酸酯化环合等反应合成目标化合物。

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Epoxides, episulphides and ethylene imines also polymerize via similar cyclic onium ion mechanisms.

环氧化合物,环硫化合物亚胺也可以按类似于环氧?睦胱拥幕?理进行聚合。

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Some of the theoretical analyses concerning the compound is given,wethink benzofuroxan cyclics have truly aromaticity.

对其结构作了理论分析实验鉴定,认为该化合物具有杂芳结构。

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These werecharacterized by cyclic voltammetry in the presence of ferrocenemonocarboxylate and hexamine ruthenium as probe molecules.

这些用以单羧酸六甲基四胺合钌作为探针分的循环伏安法来表示。

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The three different preparation methods of cyclic trioligomer are described in this paper. The chromatographically pure compound was obtained.

文章叙述了三种制备环状三聚体的方法;获得了色谱纯的化合物。

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Scaning electron microscopy and cyclic voltammetry are applied to characterize both the physical and chemical properties of the Ag ring ultramicroelectrode.

用扫描电循环伏安法对制备的环电极进行了物理化学性能表征。

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Scaning electron microscopy and cyclic voltammetry are applied to characterize both the physical and chemical properties of the Au ring ultramicroelectrode.

用扫描电循环伏安法对制备的电极进行了物理化学性能表征。

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As the necessary measure of internal control, we should enforce the audit of internal control and configurate a cyclic model of business.

完善内部控制的必要手段,首先对内部控制的审计做出强制性的安排,其次要构造业务循环模型。

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MOR zeolite was dispersed into poly(ethylene glycol)oligomer to form a stable gel. Its Electrochemical behavior was first detected by a cyclic voltammeter.

丝光沸石被分散到二醇低聚物中形成稳定的胶体。它的电化学行为首次被用循环伏安法研究。

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There are three microscopic organizational modes of cyclic economy in the perspective of supply chain, i.e., green supply chain, endo-symbiosis supply chain and exogen-symbiosis supply chain.

摘要基于供应链角度提炼了循环经济的三种观组织模式:绿色供应链、外生共生体型供应链内生共生体型供应链。

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To multi-station(multiqueue) cyclic service system, this paper advances a grade compound new strategy of a development adjust service quantity to fit the station load unbalance system.

对于多站(多队列)循环服务系统,本文提出一种可动态调整服务量的分级复合型新策略,以适应站点负荷非均衡系统。

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In this simple control system, the cyclic controls are transmitted from the servos to the flybar only and the main blade cyclic pitch is controlled by the flybar tilt only.

在这个简单的控制系统,循环控制传输从伺服到flybar只有主要刀片循环音高是由flybar倾斜只。

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The results show that the fine grain process of casting has some effects on the behavior of response to cyclic stress, such as the increase in rigidification exponential of fine grains.

实验表明,晶粒细化对循环应力响应有一定的影响,比如硬化指数的提高。同时疲劳过渡寿命降低。

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Osmosis-生殖

First, there are functional cysts, which result when the normal, cyclic development of the ovarian follicles is disrupted.

第一类是功能性囊肿,由正常、周期性卵泡发育过程被打乱而导致。

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Osmosis-微生物

This protein in turn leads to an overproduction of the intracellular secondary messenger protein, cyclic adenosine monophosphate, or simply cAMP.

然后此蛋白再过度激活一种叫做cAMP细胞内第二信使。

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Crash Course 综合篇

Cyclic hydrocarbons that contain resonant structures.

含有共振结构环烃。

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BBC Ideas

So this is cyclic forward and backward movements that the animals make with their whiskers.

所以这是动物用胡须做循环前进和后退运动。

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历年研究生考试英语真题

The text intends to tell us that the change of human height follows a cyclic pattern.

文字意在告诉我身高变化是有规律

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202322

The craft responded to my touch, banking left as I nudged the cyclic, climbing higher as I increased the throttle.

飞行器响应我触摸,在我轻推循环时向左倾斜,随着我增加油而爬升。

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西游双英 AI字幕

To know cyclic time's work, if that's your quest, Read Tale of Woes Dispelled on Journey West.

要了解循环时间工作(功效),如果这是您追求,请阅读《西游烦恼消散故事。

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Crash Course 综合篇

But before we talk about aromatics, let's talk about the most basic cyclic structures, the cycloalkanes.

但在我谈论芳烃之前, 让我先谈谈最基本环状结构, 即环烷烃。

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Crash Course 综合篇

But as more carbons join into the ring cyclic structures get more stable.

但是随着更多碳加入环, 环状结构变得更加稳定。

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Scishow 精选系列

Basically, it has two cyclic structures smushed together and every carbon atom on the ring has another carbon atom hanging off of it.

基本上说,它是两个相互铰链环状结构,碳环上每个碳原子都与另一个相连。

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Crash Course 综合篇

And you can't make a ring with one or two carbons, so the simplest cyclic hydrocarbon must be cyclopropane.

而且你不能用一个或两个碳组成一个环, 所以最简单环烃必须是环丙烷。

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Crash Course 综合篇

So far we've just been looking at the cyclic hydrocarbons, so what's up with the aromatics?

到目前为止, 我一直在关注环烃, 那么芳烃又如何呢?

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Crash Course 综合篇

Now aromatics can have all sorts of substituents as well, and the naming system is pretty much the same as with other cyclics.

现在芳烃也可以有各种取代基,命名系统与其他环状化合物几乎相同。

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Crash Course 综合篇

If you paid attention, you learned about the structure of cyclic organic compounds and how to name them and their substituents.

如果你留心,你就会了解环状有机化合物结构以及如何命名它和它取代基。

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自然历史博物馆

The dormouse can move their whiskers in a process that's called whisking, so backwards and forwards cyclic movements, some of the fastest movements that mammals can make.

睡鼠可以在被称为“摆动”过程活动它胡须,这样前后循环摆动,这是哺乳动物能做出一些最快动作了。

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Osmosis-内分泌

During puberty, the monthly menstrual and ovarian cycles begin, which is when the endometrium, or inner lining of the uterus, goes through cyclic changes in response to the ovarian hormones.

在青春期,月经和卵巢周期开始出现,此时子宫内膜(或子宫内衬)对卵巢激素作出反应,发生周期性变化。

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《沙丘》有声书

" If we can get three per cent of the green plant element on Arrakis involved in forming carbon compounds as foodstuffs, we've started the cyclic system, " Kynes said.

“如果我能够在 Arrakis 上获得 3% 绿色植物元素参与形成碳化合物作为食物,我就已经启动了循环系统,”Kynes 说。

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Crash Course 综合篇

Sometimes, they form rings, or as chemists call them: cyclic structures, and if the rings have the right number and placement of double bonds they start acting weird and wonderful.

有时,它会形成环, 或者正如化学家所说:环状结构,如果环双键数量和位置正确, 它就会开始表现得奇怪而奇妙。

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