分子性

Both a reversion and an increase of the absolute value of specific rotation in the transformation from MALM to PMALM- b -PSF- b -PMALM were observed,which were probably caused by some kind of stereostructure of the main chain formed during the polymerization due to the intermolecular hydrogen-bonding.

共聚物在聚合过程中旋光度发生了反转，且比单体的旋光度的绝对值显著增加，这可能是由于聚合过程中分子主链感应出了手性的二级结构诱导出手性放大效应引起的。

Methods The retrospective study involved 196 patients（300 eyes） with myopia anisometropia and mixed astigmatism who received LASIK treatment from August in 2002 to August in 2007 in our department.

目的 分析准分子激光原位角膜磨镶术治疗近视性屈光参差及混合性散光的临床疗效。

They have small molecular mass, good thermostability and antigenicity.

它具有较小的分子质量，良好的耐热性和较小的抗原性，且具有广泛的抗菌活性。

The X-ray analysis of the chiral macrocycle Ⅲb shows that the chiral ligand with acavity is rather rigid and strained. The unsymmetrical spatial structure of Ⅲb wellexplains the different recognition to chiral small molecules.

结果表明大环Ⅲb是具有一定大小空腔的扭曲型刚性分子，这种环系的不对称空间结构能够很好地解释它对手性小分子的不同识别作用。

In this paper we summarized the progress on molecular and genetic studies of maize downy mildew including genetic behave of resistance, QTL location of resistant gene, QTL effects and interactions between QTLs and environments, molecular marker and genetic diversity of resistance to maize downy mildew.

笔者从玉米霜霉病抗性的遗传表现、抗性基因的QTL定位、QTL效应及QTL与环境的互作、抗性的分子标记及抗性遗传多态性变异等方面对其分子遗传研究进展情况进行了概述。

As protein of bacteria and fungi is with negative charge. The antibacterial functional mass, grafted by assembling chemical method, is positive electric polarity. Thus, the antibacterial functional mass is absorbed to the cell of microorganism by the principle of unlike charges attracting. This will influence the normal breath and metabolism of the cell and causes the cell membrane to rupture. In this way, its product realizes the function of being antibacterial, antiviral, and mildew-proof

分子组装抗菌技术主要是通过化学接枝的方法，将精选的抗菌功能团组装到基体树脂的分子链上，利用抗菌功能团的正电性与细菌的带负电蛋白质的异性相吸原理，将微生物细胞吸附，并影响细胞的正常呼吸和代谢功能，造成细胞的破裂，达到抗菌的目的，从而使产品达到了真正意义上的持久抗菌。

The significant induction of hepatic CYP1A in response to DA indicates an important role for phaseⅠxenobiotic metabolizing enzymes in DA metabolism.

本实验首次从分子水平上研究了记忆缺失性毒素DA在海洋鱼类中积累的分子机制。

By RAIRS results we speculate that multilayer BrCH2CH2Br absorb in trans form mainly and below monolayer BrCH2CH2Br dissociatively absorb on the surfaces in -C-C-Br skeleton lay down on surfaces.

由RAIRS的结果我们推测在乾净的Cu(100)表面上，BrCH2CH2Br的多层分子主要是以trans form吸附，单分子层以下的BrCH2CH2Br则是分解性的吸附在表面上，以-C-C-Br骨架躺下的位向吸附。

8Ps for native and NaBH〓 chemically modified reaction centers, and the transfer process from H〓 to the final electron acceptor Q〓 occurs in about hundreds of picoseconds. On the other hand, the energy transfer from excited B was obviously slowed down in the pheophytin-exchanged RC. By considering the change of free energy of ion pair P〓Phe〓, it could be expected there might exist alternative pathway of charge separation and electron transfer in pigment-exchanged reaction center. In addition, the influence of acid environment on the ultrafast dynamics of reaction center was also experimentally observed, which shows an evident difference from that of in native RC, and further investigation should be carried out to elucidate the origination.

在色素置换后的反应中心中，以B为起点的能量传递较天然RC的情况明显减慢，约在450fs左右，考虑到置换后的反应中心中P的自由能有所提高以及其仍然保持的光化学活性，这一较慢的能量传递也可能预示着还存在着其它的能量传递通道；另外，还对酸性处理的反应中心中的超快光动力学过程进行了尝试性的研究，发现由于色素分子的聚集以及蛋白环境的改变，BChl分子的激发态动力学过程有着明显不同于天然反应中心的情况。

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

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。