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Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).

摘要采用脱氢芳樟醇为原料,在乙酰钼、苯甲、二甲基亚砜(DMSO)的甲苯溶液中催化重排合成柠檬醛,考了柠檬醛在不同体系中的热敏性。

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The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明,有三分子质子(以氧鎓的形式纯在)参与了反应。

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The method of liquid phase rearrangement of styrene oxide to phenylacetaldehyde catalyzed by SAStype solid acids and molecular sieves was studied.

研究了SAS型固体几种分子筛上氧化苯乙烯液相重排成苯乙醛的反应,考了催化剂的活性、选择性稳定性。

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透视百科科技类

We know that radiation causes or will induce these chromosome aberrations, or rearrangement of the chromosomes.

已知辐射会引起或诱发染色体的畸变或

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潮流科技大事件!

It's a 4 point rearrangement, with a flash and triple Leica cameras.

采用四眼排列,一个闪光灯,三个徕卡摄像头。

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双语版 TED-Ed 演讲精选

One classic proof often attributed to Pythagoras himself uses a strategy called proof by rearrangement.

经典证明是毕达哥拉斯自己做出的,他利用了一种名叫排列的证明方法。

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PBS趣味科普

So we can do some rearrangement, take the log of both sides.

所以我可以新安排边同时取 log 值。

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Scishow 精选系列

Aerating also exposes the wine to oxygen, and oxygen causes oxidation: a rearrangement of electrons that can shift a chemical's properties and help break down molecules.

透气还会使葡萄酒暴露在氧气中,而氧气会导致氧化:电子的新排列可以改变化学物质的性质并帮助分解分子。

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Osmosis-血液肿瘤

These centroblasts have a rearrangement of their immunoglobulin genes, and some of them undergo a class switch where they change from producing IgM antibodies to producing IgG or IgA antibodies.

这部分中心母细胞的免疫球蛋白基因发生了,其中的一些会经历Ig类别转换,从产生IgM变成产生IgG或IgA。

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还乡

In a dim light, and with a slight rearrangement of her hair, her general figure might have stood for that of either of the higher female deities.

光线微暗时,只要发式稍加修整,她整个的体态便完全可以看作是任何一个高贵的女神。

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Wolf 359

No matter rearrangement, no temporal jumps, no disintegration, we are going to speak.

无论怎样,时间如何跳跃,亦或分崩离析,我倾诉。

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Veritasium真理元素

This is true regardless of how any of the non-pivotal voters rearrange their positions of A and C, because these rearrangements don't change the position of A relative to B or C relative to B.

这一事实成立,无论非关键选民如何新排列A和C的位置,因为这些新排列并不改变A相对于B或C相对于B的位置。

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The Matt Walsh Show

The most common options patients have are tests for extra or missing chromosomes, structural chromosome rearrangements that can trigger pregnancy loss and disorders linked to a single gene, such as cystic fibrosis and muscular dystrophy.

患者最常见的选择是检测额外或缺失的染色体、可能导致流产和单基因相关疾病的染色体结构,如囊性纤维化和肌营养不良症。

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高等数学之美

It reminds me of one of those rearrangement  puzzles where you have a number of pieces and just by moving them around you can seemingly create  area out of nowhere.

这让我想起了那种拼图游戏,你有一些拼图块,仅仅通过移动它,就能看似凭空创造出一些面积。

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经济学人 Culture

The particular ribozymal activity Dr Cech's team found was an " autocatalytic" rearrangement of an RNA molecule (the actual discovery was made by Paula Grabowski, a graduate student).

Cech 博士的研究小组发现的特定核酶活性是 RNA 分子的“自催化”(实际发现是由研究生 Paula Grabowski 完成的)。

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SciSHow 快问快答小科普

Aerating also exposes the wine to oxygen, and oxygen causes oxidation: a rearrangement of electrons that can shift a chemical’s properties and help break down molecules.

充氧也会使葡萄酒接触到氧气,而氧气会导致氧化:电子排列, 从而改变化学物质的性质, 并有助于分解分子。

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心理学百科 The Psychology Book (Big Ideas Simply Explained)

In adults, however, learning tends to involve the rearrangement of existing cell assemblies and phase sequences, rather than the formation of new ones.

然而, 在成年人中, 学习往往涉及现有细胞集合及其相位序列的,而非新细胞集合的形成。

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六级晨读美文

Enter the executive editor, who makes a suggestion requiring a more-than-modest rearrangement of the design and the addition of an information box.

输入执行编辑,他提出了一个建议,要求对设计进行非常适度的新安排并添加一个信息框。

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MILLENNIA THINKER

I'm just too pretty to pay people for slow-face rearrangement treatment.

我太漂亮了,无法付钱给人进行缓慢的面部新排列治疗。

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复活

If she married Simonson, his presence was no longer necessary, and that required a rearrangement of his projects.

如果她嫁给了西蒙森, 就不再需要他在场了, 这就需要新安排他的计划。

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2017级专外有声

Many modern molecular tests such as flow cytometry, polymerase chain reaction (PCR), In situ hybridization, immunohistochemistry, cytogenetics and gene rearrangements studies fall within the territory of pathology.

许多现代分子检测,如流式细胞术,聚合酶链反应(PCR),原位杂交,免疫组织化学,细胞遗传学和基因研究属于病理学领域。

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Bayesian Statistics

And it just represents the number of rearrangements of 1's and 0's that I can't distinguish that have the same sum as that number right there.

它只表示我无法区分的 1 和 0 的新排列次数,这些次数与该数字的总和相同。

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Fast Facts Non-Small-Cell Lung Cancer

ALK gene rearrangement ALK gene rearrangements result from inversions or translocations on chromosome 2 and occur in around 4% of patients with NSCLC.

ALK 基因排 ALK 基因排是由 2 号染色体上的倒位或易位引起的,大约 4% 的 NSCLC 患者会发生这种情况。

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