双分子的

In an attempt to provide a better understanding of the diversity, evolution and spread of geminiviruses in China, 32 samples showing typical geminivirus symptoms were collected from papaya, tomato, tobacco, Euphorbia pulcherrima, Sonchus oleraceus Linn and Ageratum conyzoides in Guangxi province.

为了明确双生病毒的发生、分布与传播，我们从广西番木瓜、番茄、烟草、一品红、苦苣菜及胜红蓟上采集了32个具有双生病毒典型症状的样品并对病毒进行了分子检测与鉴定。

A universal analytic potential energy function is derived using the cosine function with a phase factor,which is suitable to be applied to the interactions between two atoms in a molecule or molecule and ion.5 kinds of common potential curves are obtained by adjusting phase factors.

利用一种带相位因子的余弦函数，导出了适用于双原子分子或分子离子间相互作用的普适性解析势能函数，通过调节相位因子可获得5种常见形态的势能曲线。

The mechanism was supposed as follows: polyfluoroalkyl iodides were initiated by sodium dithionite to give R〓 which was added to one double bond of diallylacetic acid, after the sequential radical cyclization and nucleophilic substitution to form bicyclo-lactones.

这是因为：多氟烷基碘化物在连二亚硫酸钠的引发下，得到自由基R〓，后者加成到二烯丙基乙酸中的一个—C=C—双键上，然后在碱性介质中进行分子内亲核反应得到双环内酯类产物。

With this model, we achieve insight into the ion momentum distribution under the combined influence of a two-center Coulomb potential and an intense laser field, and our result shows the significant influence of molecular alignment on the ratio between double and single ionization rate.

研究中我们考察了双中心库仑势及外加场共同作用下的离子动量分布，计算结果同样给出了分子取向对双电离和单电离比率的影响。

Under the guidance of my teacher, a new model on unidirectional motion of molecular motor is put forward, in which the interaction between two heads is taken into account for the first time.

本文首次提出了双头相互作用的分子马达定向运动机制的模型，尝试了物理上研究分子马达定向运动机制的新方法。

The results showed:1The 6 main products are all fourmemberring compounds produced through the cleavage of double bond of nopol;2Accompany with oxidations of the double bond and tertiary hydrogen in the ozonization,there are other reactions at more indepth levels.

分析结果表明：这6个主要产物都是诺卜醇分子中双键断裂后所形成的四元环类化合物，诺卜醇臭氧化时除了碳碳双键、叔氢被氧化外，还伴有其它更深层次的反应。

A transmissive electr-onmicroscope is used to study the appearance and molecular weight of the monomolecules of xanthan.

认为黄原胶分子在一般情况下具有较规则的二、三、四级结构，论述了其初、高级结构之间的关系，得出了黄原胶分子是由40余个亚基组成的右手双螺旋这一结论，计算出其分子量为6×10~6至25×10~6。

Of various biaryl alkynes under mild condition by an easy-to-handle complex 4 in unpurified solvents of regent grade quality.

此反应可将两当量的DMAD分子和一当量各式各样双芳香环取代的乙炔分子在空气下进行一个环化反应，并且可使用未经纯化过的试药级溶剂。

Currently, it focuses on the taxonomic study, molecular systematics, zoogeography and Evolutionary biology of Hemiptera, Diptera, and Lepidoptera based on the morphology and by using molecular systematic and biogeography methods.

目前本所主要集中于应用形态学、分子系统学、生物地理学等方法进行半翅目、双翅目及鳞翅目昆虫的分类学、分子系统发育、动物地理学和进化生物学的研究，同时还进行昆虫生理生化、昆虫病理学、害虫防治等方面的研究。

Exceptionally large nonlinear optical response in C60 had been reported, and diacetylene complexes have the large NLO suspceptibilities, so the novel idea of introducing diacetylene to C60 to improve the NLO suspceptibilities was supposed.

富勒烯具有优良的非线性光学性能，共轭双炔类有机分子有较大非线性光学系数，将C60与双炔类化合物结合在一起设计非线性光学材料是一个有意义的设想。

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。