1、

The simulation results suggested that the EVAP showed significant effects on the nucleation and growth of the paraffin crystal when the acetate concentration was around 30% and there existed one branched methyl group near the acetate group in each block.

在各种乙烯醋酸乙烯丙烯(EVAP)降凝剂中,当EVAP酯含量在30%左右,且在每个链段含有一个靠近酯基的甲基支链时容易在蜡晶的成核和生长过程中发挥作用。

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2、

Codeine has the same structure as morphine, but the phenol group masked as a methyl ether.

可待因也有和吗啡相同的结构, 但是酚基被甲基醚屏蔽了,结果.

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3、

DNA methylation is the only known covalent modification of DNA molecule. It is accomplished by transfer of the methyl group from S-adenosyl methionine to 5 position of the purine ring of cytosine.

DNA甲基化(DNA Methylation)是目前已知的唯一天然的DNA共价修饰方式,由DNA转移酶催化,将S-腺苷甲硫氨酸上的甲基转移到胞嘧啶嘌呤环的第五位碳原子上。

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4、

Genes get switched off when a chemical mark, a methyl group, is added to the DNA.

DNA的甲基化会使基因表达关闭.

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5、

A kind of novel PU and poly ( acrylate-co-methyl methacrylate) s with nonlinear optical conjugated group were synthesized. Their properties were studied.

本论文合成了一类含非线性生色团的长侧链的聚氨酯和一类聚丙烯酸酯及其与甲基丙烯酸甲酯的共聚物,并对它们的非线性光学性能进行了研究。

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6、

Design and synthesis of tris ( 1-thiogalactopyranoside) having a methyl-protected carboxy group at the aglycon terminals

端基含甲基保护羧基的三半乳糖苷的设计和合成

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7、

And it was found that dioxo-methyl group was a key factor to determine the antioxidant activity of DCLs, because its O and C had rather high net charge and its steric hindrance was rather low.

发现二氧甲基基团具有较大的O原子负电荷及C原子正电荷,且空间位阻较小,因此成为决定五味子素抗氧化活性的关键因素。

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