查询词典 complex

It is concluded that if palladium ion coordinated with ligands is electron deficient and ligands have less steric hinderance, the palladium complex will have higher catalytic activity. According to this rule, we can tone ligand in palladium complex and improve its activity.

如果配体能使Pd〓的电子缺乏，具有较小的空间位阻，Pd配合物的活性就会提高，因此可根据这一结论对Pd配合物中的配体进行调配，提高其催化活性。

A new gene structure is proposed: head+body+tail, which allows the program with necessary complexity and putting some learning mechanism into the search process.② A new homeotic gene structure is proposed, it not only can call for subroutines easily, but also can automatically perform programming.③ The concept of different homeotic gene, a multi-cellular structure is proposed. It can be used to describe the complex multi-level programs and to implement the complex subroutine calls.④ An estimation of distribution operator for guiding search is proposed. It fuses statistic learning mechanism into the search process to accelerate the convergent process and improve the quality of solutions.

提出了一种新的基因结构：头＋身＋尾，使计算机自动设计的程序具有必要的复杂性，又便于引入学习机制；②提出了一种新的同源基因结构，它不仅可实现子程序的调用，还具有很强的编程能力；③提出了异族同源基因的概念：一种多细胞结构，它能描述复杂的多层次程序结构，实现可重用程序的复杂调用；④提出了分布估计变异方法，将统计学习机制融入算法，既提高了算法的收敛速度，又提高了解的质量。

Results Among the pre-schoolers,the hyperopia is primarily, specially the complex hypermetropic astigmatism. While among the school-age teenagers,myopia increases obviously,and the complex myopic astigmatism are most.

结果 学龄前儿童以远视眼为主，特别是复性远视散光最为多见，学龄期青少年儿童近视眼明显增多，其中复性近视散光最多。

From 1985 to 2000, woodland, grassland, industrial and residential land tended to be more inerratic and stable, whereas cropland and water area more complex and unstable. Unused land remained unchanged. During this period, the land use structure of Suzhou was unsteady, and its form became more complex.

从1985年至2000年，林地、草地以及居住与工矿用地趋于规则、稳定；耕地、水域用地趋于复杂、不稳定；未利用土地没有变化；苏州市土地利用结构不够稳定，土地利用形态趋于复杂化。

Displayed similar photophysical changes in the presence of DNA. But the complex increased the viscosity of DNA weakly. This suggests that due to the constraint from the rigid structure of the macrocyclic ligand, the complex binds to DNA by weak intercalative interaction.

在光谱方面也出现了类似的现象，但DNA的粘度却略有增加，说明环上的苯环可能由于受到整个配合物结构刚性的限制，只能以较弱的插入方式与DNA作用。

In addition, the complex of Rb with energic materials NTO was also studied, and many important achivements were gotted. Because these complex compounds are significant to the new sensitive dynamite and energitic katalyst, these results were receiving widely attentions from colleagues in our nation as well as in the world.

与此同时，对Rb、Cs等稀碱元素与NTO等含能材料的配位作用也进行了系统研究，取得了一系列重要的研究成果，由于这些配合物在未来新型高能纯感炸药和含能催化剂中具有重要作用，因而引起国内同行的广泛关注。

These results suggest that the diagenesis material of the Xiangshan volcanic intrusive complex was derived from crustal sources. The sources either had relatively lower maturity or had more juvenile mantle-derived igneous rocks than the exposed basement metamorphic rocks. Involvement of a small amount mantle-derived magma during the formation of the Xiangshan volcanic-intrusive complex was also possible. The diorite enclave, sub-quartzmonzonitic porphyry and lamprophyre were probably different mixing products between mantle and crust materals.

上述同位素示踪结果充分证实：相山火山-侵入杂岩的成岩物质主要为壳源，但与该区出露的基底变质岩相比，其物源区的成熟度相对较低或含有一定量的火成物质，并且不排除在其成岩过程中少量地幔物质的介入；闪长质包体、次石英二长斑岩及煌斑岩的成岩物质均含有一定量的地幔组分，可能为壳-幔混合作用的产物，只是受地壳物质混染的程度不同而已。

The Chapter 2 also shows the reactions of a diiron cationic bridging carbyne complex with N-containing nucleophile such as LiNEt〓 to give the arylcarbene complex 〓.

在含氮亲核试剂LiNEt〓与阳离子桥卡拜络合物反应中，生成桥卡宾碳上键合氢的双铁桥卡宾络合物。

Because of the impact of precipitation facies and lithogeny, there are many complex reservoirs in Nanpu oil field with characteristics of high bond water saturation, high cation exchange capacity and complex pore structures. The reservoir's electrical parameters are different from that of conventional sandstone reservoir so that we can't use Archie's equation to do reservoir evaluation.

南堡油田第三系受沉积微相和成岩作用的影响发育大量的复杂砂岩储层，束缚水饱和度和阳离子交换量偏高，储层孔隙结构复杂，地层因素和孔隙度表现出非阿尔奇关系的特征。

Figure 3. A, Transabdominal scan of the right adnexa shows a complex mass surrounded by pelvic structures containing several round areas of loculated fluid that vary in size and are separated by a thickened band or adhesion, simulating a tubo-ovarian abscess or complex. B, Transabdominal cross-sectional scan shows the 2 loculated fluid areas posterior to the uterus separated by a thickened adhesion band.

图3 A，右侧附件区经腹部扫描显示被盆腔结构环绕的混合性肿块，其内有数个圆形的局限性积液，其大小不等，被增厚的束带或粘连分隔，象是一个输卵管-卵巢脓肿或复合体。B，经腹部横切面扫描显示子宫后方的2个局限性积液区，被一增厚的粘连束带所分隔。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。