分子性

The reason is that the energy deposited by heavy ions can directly or indirectly migrate along DNA strands, and can firstly break the bonds of highest electron affinity and lowest ionization potential.

重离子辐照沉积的能量可以直接或间接地沿DNA链迁移，从而使得DNA分子上相对较弱或亲电性较强的化学键优先断裂。

At the same time, electron cloud density of the nitrogen atom may be taken as the key factor to be correlation with the biodegradation property.

同时还提出了用捕收剂分子中N原子上的电子云密度可作为衡量捕收剂生物降解性的重要参数。

On the basis of the molecular branching index of Randic,by adding Pauling molecular electronegative,a new molecular topological index was proposed and used to correlate between the chemical structures of haloalkane s and their boiling point at normal pressure.

在Rand ic提出的分子支化度指数的基础上，引进了卤原子的电负性，提出了一种新的拓扑指数，并对饱和卤代烃在常压下的沸点与化学结构之间的关系进行研究，建立了回归方程，相关系数达到0.995，预测值与实验值基本吻合

On the electronegative elements, bonding electron number and bonded hydrogen atomic number, new molecular topological index is developed to do research on creaturely activity for alcohol, aether, ketone and ester in this paper.

基于元素的Pauling电负性，原子成σ键的电子数，原子直接键连的成σ键的氢原子数目和原子在形成离域π键时所提供的P电子数，定义了一种原子点价公式，构建了分子连接性指数。

A novel fluorescent probe, which is both pH-selective and pH-sensitive for the two extreme pH ranges of 1.8-3.4 and 11.6-13.3, was designed by assembling several electronegative atoms in the different positions of a highly conjugated molecule.

通过构建喹啉酮荧光体，将多个电负性氮原子设置于同一个共轭分子的不同电子环境中，制作了对极端pH变化具有灵敏响应的新型荧光探针。

According to the element structure theory, a theoretical floatation of coal was analyzed base on the organic element makeup of coal surface and the relationship between water flow.

依据分子结构理论，从煤表面的有机分子组成和疏水性间的关系分析了煤的理论可浮性。

In order to investigate cellular and molecular interactions between symbionts and their host endoderm cells, an homogeneous population of endoderm cell is required.

为了研究共体与宿主內胚层细胞之间分子与细胞的交互作用，必须要有一群同质性的內胚层细胞。

It was found that the chiral separation process was enthalpy controlled.

结果表明，分子烙印手性固定相的分离过程为焓控制过程。

This dissertation aims to: improvement in regularity of ladderlike polysiloxane through strong H-bonding template and"half-water-hydrolysis"methods; synthesis of several functional polysilsequioxane with ethoxyl, hydro and aminopropyl groups respectively; and the preparation of nanoporous film with good mechanic properties from ladderlike functional polysilsesquioxane with intermolecular porogen via micro-phase separation process.

本论文旨在利用强氢键模板作用和"半水水解-脱氯化氢缩聚"的改进方法，提高反应性的梯形聚硅氧烷的规整度；合成乙氧基封端、含氢基和氨丙基的几种功能性梯形聚硅氧烷；以及探索利用含分子内成孔剂的梯形聚倍半硅氧烷通过微相分离制备低介电常数二氧化硅纳米微孔膜。

The key point for constructing the novel recombinant exotoxin fusion protein B7-PE40 KDEL was to preserve the molecular biology characteristics of themselves, such as flexibility, antigenicity, hydrophilicity, epitope and secondary structure and to enhance their cytotoxic activity.

分子构建成功新型重组B7-PE40KDEL融合蛋白的关键在于，要使所构建的B7-PE40KDEL能分别保留B7-1、B7-2和PE40KDEL各自的表位特征、没有新的抗原表位产生、柔性接头处具有极低的抗原性以及具有更强的杀伤效力。

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。