双分子的

The two-photon absorption properties of 4,4′-bis stilbene synthesized recently are calculated at ab initio level.

对最近实验室合成的分子材料4，4＇二甲氨基二苯乙烯的双光子吸收特性在从头计算的基础上进行了理论研究。

The spin configurations of a two - sublattice system has been studied by mean field theory. It is found that at the absence of magnetic field, there exist two different linear and non-linear spin configurations.

用分子场理论研究双亚点阵系统的自旋织构，发现在零磁场条件下存在共线和非线两种不同的自旋织构的相图。

It is discovered that there is a new magnetic transition: the first order spin reorientation reform , at which the magnetization, the anisotropy coefficients and the mean fields of the two - sublattice system change, accompanying with the spin reorientation.

还发现存在一级自旋再取向重整转变，在发生自旋再取向转变的同时双亚点阵系统的磁化强度，磁晶各向异性参数，分子场等磁性的大小都发生改变，是一种新型磁性相变。

Baculovirus is a kind of double-stranded circle large DNA virus, which has been developed as an environment sound pesticide and a powerful vector of foreign protein expression, as well as a potential vector of gene therapy.

杆状病毒是一类大型环状双链DNA病毒，作为一种高效的生物杀虫剂、真核表达系统以及基因治疗载体的研究和应用，其分子生物学和侵染机制的研究也取得了很大进展。

Also, we investigate another self-assembly which is formed through noncovalent bond interactions of a novel kind of dimelamine and barbituric moleclus.

同时还进行了互补的另一类自组装研究，即巴比妥酸与一类新型的双密胺分子间通过非共价键相互作用的自组装。

Isolated from the marine tube worm cephalodiscus gilchristi in the Indian Ocean, cephalostatin 1 is among the most potent antitumor agents ever tested by the National Cancer Institute.

中文摘要 Cephalostatin 1是从印度洋的海洋寄生虫cephalodiscus gilchristi体内分离得到的十三环吡嗪双甾体，是迄今为止NCI测试过抗肿瘤活性最好的天然产物分子之一。

Synthesis process Molecular Formula:〓 Molecular Weight: 394 Chemicla name: N-(2, 3-dihydro-2, 7-dimethyl-benzofuran-1-acyl)-N'-tert-butylN'-(3, 5-dimethyl benzoyl) hydrazine Structural formula:〓 This article define a synthesis method of JS118 with (2, 3-dihydro-2, 7-dimethylbenzofuranyl)-6-formic acid, tert-butyl hydrazine hydrochloride acid and 3, 5-dimethyl benzoic acid as main intermediate through four steps of reaction involving, acyl chloridation condensation and so on.

本文主要的研究工作内容：(1)以N-特丁基双酰肼为先导结构，利用分子等排原理和类同合成法进行先导设计，有目的、有选择地重点改变R〓、R〓基团，将具有不同取代基的苯环以及呋喃环、苯并呋喃环、吡咯环、吡啶环等杂环、稠杂环与先导结构进行有机的组合。

All homologous partial sequences of COI and 16S in Portunidae were collected from GenBank and aligned with the homologous sequences of P.trituberculatus. The NJ tree and MP tree were constructed using Kimura 2-parameter model. Homologous sequences (429 bp) of sampled specimen and genus Charybdis were aligned.

结合GenBank中收集的梭子蟹科COI，16 S rRNA两个基因所有同源序列信息，使用Kimura双参数模型采用邻接法、最大简约法构建梭子蟹科分子系统发育树；将样品蟹测得的COI基因序列和已知属的其他蟹同源序列(429 bp)进行比对分析。

The influence of chain extender kind, content and reactive processing condition on molecular weight (averageM(subscript η) of recycled PET was studied carefully based on chain extenders of 2, 2'-Bis(2-oxazoline), Pyromellitic dianhydride and the mixture of the both during reactive extrusion processing.

分别使用双恶唑啉、均苯四酐及两者的混合物作为回收PET瓶的扩链剂，研究扩链剂的种类、扩链剂用量和反应挤出机加工工艺条件对PET产品相对分子质量

Finally, the article discussed the possible mechanism of multi-phase electrochemical degradation of wastewater through the XPS spectrum of the used catalysts surface: In the acid solutions, the electro-generated O_2 may get electrons on the porous graphite cathode and then form H_2O_2, H_2O_2 may diffused to the surface of catalyst and reacted with its active part to produce OH, which in turn can destruct organics. The catalyst functioned as both the catalyst to decompose H_2O_2 and the flocculants to sedimentate the degraded waste.

最后全文结合研究反应后催化剂表面的XPS光电子能谱推断了该体系降解污废水可能的反应机理：在酸性条件下，石墨双阳极产生的O_2被多孔扩散性石墨阴极还原成H_2O_2，并通过扩散传质作用在催化剂的表面活性中心分解为强氧化性中间产物·OH，强氧化性攻击有机物，使其降解为小分子有机物或CO_2和H_2O，催化剂在体系中即起催化作用也起吸附、絮凝作用。

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。