极性

In this dissertation, the more denoting β-diketone ligand is used to weaken the electrophilic property of Ti center to obtain a complex for use as a catalyst precursor to polymerize ethylene, vinyl pyridine and acrylonitrile.

如何通过化学或物理化学方法来调节活性中心与非极性烯烃、活性中心与极性单体这两者之间的性能差异，使之同时能适应两类单体聚合无疑是很重要的。

Its maximum features is that material both polar and non-polar materials on cards and membership cards; as well as the direct flexography business card printing and membership card making, and matastatic lithography business card printing and membership card; neither oven or electric hair dryer facilities do not have to take into account the dirty version into powder.

其最大特征在于既能在极性材料，又能在非极性材料上制卡和会员卡制作；既能直接进行柔性凸版制卡和会员卡制作，又能进行转移性平版制卡和会员卡制作；既没有烘箱或电吹风设施，又无须考虑脏版进喷粉。

Electropolar solvent such as THF may destroy the polyetherimide layer,while non-electropolar solvent such as petroleum ether cannot solve vinyl acetic acid cobalt.

极性溶剂如四氢呋喃会溶解PEI层，而非极性溶剂如石油醚又不能溶解丁烯酸钴。

Although these genes have been identified and characterized extensively, little is known about the genetic epistasis among them.

现在已知这些基因共同作用于叶片的近-远轴极性建成，但是AS2同其它极性基因之间的遗传调节关系并不清楚。

Recently Wang and Xiao discussed the excitation state energy of polaron in polyatomic crystals for the first time.

近年来国内外对多原子极性晶体中磁极化子性质的研究十分活跃，Zorkani等采用变分法计算了束缚磁极化子的基态能量，Kandemir等采用束缚朗道态讨论了二维大磁极化子的基态和第一激发态能量，国内一些学者采用微扰法和新颖算符法讨论了多原子极性晶体中表面和体磁极化子的性质。

It includes the definition of two basic operations, logical functions expansion and matrix formulation in OR-Coincidence algebra system, and the introduction of map expression--dj map, the complete research of the relations among CRM expansion^ maxteim expansion and RM expansion, iiamely tie relations among dj map, K-map and bj map, also includes the minimization of CRM expansion in fixed and mixed polarities-Meanwhile this dissertation points out the form and properties of basic symmetric function, simple symmetric function and basic CRM symmetric function in OR-Coincidence algebra system, discusses the relations and transform methods among the coefficients of the three kinds of symmetric functions.

包括连和与加合两种基本运算的定义，逻辑函数在或、符合代数系统里的展开式及矩阵表示式，展开式图形表示--d_i图的引入，对CRM展开式和最大项展开式、RM展开式，d_i图和K图、b_i图之间的关系及转换方法进行了较为全面的研究，以及CRM展开式在固定极性和混合极性下的最小化问题。

Mainly in aspination Geld derivation of non-polar molecule mixed absorbheat noheat or at the time of the system, and for a strong system of polar molecules, fierce an hydrogen bond formation, mixing, when heat release, the results do not apply to deduce the packaging business card printing and membership card making ink.

主要是在吸取赫尔德推导的非极性分子混合时无热或吸热的体系，而对于强极性分子构成的体系，凶为台氢键形成，混合时会放热，则该推导结果就不适用包装制卡和会员卡制作油墨方面。

The results showed that polar acetone was beneficial to the desorption of methanol, however the effect of nonpolar heptane on the extraction of methanol was more evident.

研究表明，极性溶剂丙酮能够促进甲醇脱附，而非极性溶剂正庚烷对孔道中甲醇有更强的萃取能力。

Then the breakdown mechanism was introduced to explain the results.It is found that the optimum polarity combination is heteropolarity and the best scope of the ratio between trigger voltage and self-breakdown voltage is 30%~50%.

实验结果表明：新型触发管开关获得最佳触发特性所需的极性组合应为异极性组合，触发电压幅值范围为自击穿电压的30%~50%，为兼顾触发电流和保护触发器，触发电阻值应为50~100 Ω，验证了触发管开关击穿机制的已有认识。

Hydrogenation of N=O group is easier than hydrogenolysis of the C-Cl bond on the hydrogenation of chloronitrobenzene .

氯代硝基苯中N=O极性键的加氢较C-Cl键的氢解容易进行，肉桂醛中C=O极性键较C=C键的加氢难。

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。