双分子的

These are mixtures of mono- and di-esters of 3-substituted4-hydroxycinnamic acid and quinic acid, a sugar-like molecule.

这些是单酯，双酯，三代，四羟基苯乙烯酸以及奎宁酸的混合物，一种类糖的分子。

On the other hand, the corresponding bromohydroxylation of 1, 2-allenyl sulfides with Br〓 and water should be carried out in aqueous acete nitrile at 0℃.

在1，2-联烯基硫醚分子中由于同时存在着硫原子和具有两个相互垂直π-键的累积双烯结构，使其具有一些特殊的反应性能。

The charge-transfer process for the ground and charge-transfer state is displayed, and then the mechanism of photopolymerization is qualitatively discussed.

我们给出了分子基态与电荷转移态的电荷转移过程，并从理论上定性解释了双光子聚合反应的聚合机理。

The results of experiments show that the random chain scission of maleated PHB obeys the six-membered ring ester decomposition process.

结果表明，PHB-g-MA的热分解机理与PHB相同：在高温条件下，PHB分子链的酯基部分形成六元环结构，断链时夺取亚甲基氢，生成羧基和双键两种端基。

This model of semiconservative replication-conservative because each new molecule has one half of the former parent molecule-was later confirmed by the work of Meselson and Stahl.

这个DNA复制模型称为"半保留复制"，因为两个新的DNA双螺旋分子中各含有一条母链。此模型之后得到了梅塞尔森和斯塔尔的证实。

Ofeffective 1st branches, length of main inflorenscence, effective siliques of maininflorenscence, density of main inflorenscence, length of silique, seed per sillique,1000 seed weight, total effective siliques per plant had significant positive correlationwith yield per plant. Polymorphisms between zhongshuang No.4 and H228 was examined by SSR primers. 152 primers Showed polymorphisms, and a linkage map containing 123markers, including 18 linkage groups was constructed. The total genetic distance ofthe map was 3483.1cM, and the average distance of two adjacent markers was28.32cM.

选用SSR引物对中双4号和H228间进行多态性检测，有152对引物在双亲间表现多态性，用这些引物分别对142个株系进行检测，构建了含有123个SSR分子标记、18个连锁群的连锁遗传图，总图距为3483.1cM，标记间平均距离为28.32cM，各标记在18个连锁群上的分布很不均匀，其中，第1、12、13、17连锁群上分布标记较多，其它连锁群上分布标记较少。

The copolymers are oxidized with hydrogen peroxide in the presence of osmium tetroxide. It is confirmed by superscript 1H-NMR and FTIR that the double bonds in the molecule chains of the copolymers are fully oxidized, while the segments of polystyrene in the copolymers are kept intact.

采用双氧水在四氧化锇催化下对聚合物分子链进行氧化降解，1H-NMR和FT-IR分析表明共聚物中的双键被全部氧化并发生断裂，而共聚物中聚苯乙烯的链节并未被破坏。

The reaction takes place as soon as 3a is dissolved in solution. With the presence of a tethering terminal vinyl group bound to the vinylidene ligand, the [2+2] cycloaddition of two C=C double bonds readily occurred.

当有一乙烯基键结在丙二烯基上，分子内的两个碳碳双键会马上发生[2+2]的环化加成反应。

Halohydroxylation reaction of allenyl sulfides occurs predominately with the β,γcarbon-carbon double bonds with the halogen atom bonded to the middle carbon atom of the allene moiety.

在1，2-联烯基硫醚分子中由于同时存在着硫原子和具有两个相互垂直π-键的累积双烯结构，使其具有一些特殊的反应性能。

The coordination polyhedron around Ce3＋ is a distorted square antiprism, and the two independent molecules are connected by π-π stacking interactions to form a noncentrosymmetric dimer.

中心Ce3＋的配位多面体为变形双帽四方反棱柱，两个分子之间以π-π堆积连接，生成一个非中心对称的二聚体。

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。