一分子的

The conversion of the cyclobutanes to the corresponding annulation products was achieved by a reaction sequence of [elimination of HCl in the cyclobutanes-4 electron electrocyclic ring opening-6 electron electrocyclic ring closure-elimination of another HCl molecule] .

这些环丁烷产物向增环产物的转化是经一个[脱除－分子HCl得环丁烯－环丁烯电环开环为丁二烯－6电子电环闭环－脱除另一分子HCl]这一连续反应进行的。

The distance matrix S and the topological index of distance matrix W~* were redefined in this paper.

重新定义了距离矩阵及距离矩阵拓扑指数W~*，该定义考虑分子中每一原子的性质和成键情况以及分子中每一原子与所有其它原子的结合情况。

From the 1950s through the early 1970s, Aron was regularly calumniated by the radical Left—by his erstwhile friends Sartre and Merleau-Ponty, for starters, but also by their many epigoni and intellectual heirs.

阿隆被左翼分子所憎恨这一事实并不意味着他就是右翼分子的党羽。

FRAP is a technique widely usedin cell biology to observe the dynamics of biological systems, including the diffusionof membrane components.

FRAP是在细胞生物学中被广泛用于测定生物体系动态性包括生物膜组分动态扩散的一种技术，其原理是利用高强度激光将细胞内一小部分区域的荧光分子漂白，然后通过记录该区域随后的荧光恢复，检测周围未漂白区域内的荧光分子与漂白区域荧光分子的交互扩散。

One can imagine the eventual emergence of a general purpose computer consisting of nothing more than a single macromolecule conjugated to a ribosomelike collection of enzymes which act upon it.

我们可以想像届时将会出现一种泛用电脑，这种电脑只由单一巨分子和各种可作用于巨分子的酵素集合体所制成。

We think that combiation between Triton X-100 and water molecules has a great ...

分析表明该荧光是由Triton X-100分子与水分子相互作用产生，本文对产生这一现象的机理进行了探讨。

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本项研究利用分子生物学技术和研究方法对中国吉林长白山地区非豆科固氮植物以及东北地区固氮树木的丛枝菌根真菌DNA分子多态性及其与宿主植物之间的相互关系等进行初步研究，旨在利用分子生态学理论和研究方法揭示丛枝菌根真菌多样性及其与宿主植物之间相互适应和协同进化的一般规律，为更好地保护和利用这一重要的微生物资源提供理论依据。

A diacid triglyceride containing two molecules of palmitic acid and one of stearic acid could be named dipalmitostearin or steartodipalmtin.

含有二分子棕榈酸和一分子硬脂酸的二酸式甘油三酸脂可命名为二棕榈酰硬脂酰甘油酯或硬脂酰二棕榈酰甘油酯。

A diacid triglyceride containing two molecules of palmiticacid and one of stearic acid could be named dipalmitostearin orsteartodipalmtin.

含有二分子棕榈酸和一分子硬脂酸的二酸式甘油三酸脂可命名为二棕榈酰硬脂酰甘油酯或硬脂酰二棕榈酰甘油酯。

Results Bulbus alkaloids easily formed molecular ions(superscript + in MS and dimerized easily in alcohol solution, which did not dimerize in acidity solution. Collision induced dissociation made these alkaloids easily lose a molecule of H2O. The MS spectra of the extracts of five Bulbu Fritillartae species indicated that the major molecular ions were similar to each other, but different varieties showed very different relative abundances of these molecular ions.

结果 在正离子一级质谱中，贝母生物碱易形成带一个正电荷的准分子离子，并且在中性醇溶液中，贝母生物碱易形成二聚体，在酸性介质中则无此现象；二级碰撞诱导解离易使贝母生物碱脱去一分子水；5种贝母对照药材的总生物碱提取液的一级电喷雾质谱图显示，主要分子离子峰基本相同，但因品种不同相对丰度差异较大。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。