离子对

The membrane has high retention to salts composed of high valent co-ions and counter-ions.

膜对由高价同离子和高价反离子组成的盐表现出优良的截留作用。

The pH stability of enzyme was 8 and the temperature stability of enzyme was 30℃. Bap-degrading enzyme catalyzed the oxidation of veratryl alcohol to veratraldehyde without H2O2 and the oxidation of Mn2+ by H2O2 to Mn3+.

酵素在将veratryl alcohol氧化生成veratraldehyde时是不需要H2O2协助催化，然而在对Mn2+离子氧化生成Mn3+离子时若有H2O2协助催化下可以加快酵素催化的速度。

Further studies are underway to investigate the exact intracellular mechanisms underlying the effects of the two substances. In Chapter 4, we observed the effects of metabolites of mangrove fungus Xylaria sp. from the South China Sea Coast, Xyloketal A～D, on the activity of acetylcholinesterase in vitro, and the present data indicated that AChE activity was remarkably inhibited by Xyloketal A～D in a dose-dependent manner.

另一方面，在论文第3章离体豚鼠回肠收缩实验中，发现323-A和323-B可剂量依赖性地抑制组胺、乙酰胆碱以及氯化钾所引起的GPI收缩，pD2'依次为5.13、4.97、5.36和5.51、5.56、5.62，并且，通过机制分析发现，323-A和323-B可以显著降低在外界无钙离子存在时由细胞内钙储库释放钙所产生的收缩反应，而对由细胞外钙离子内流所引起的收缩无明显影响。

General meanings, feather and behavior of surfactant, Chemical structure, characteristic and synthesis of anionic, cationic, non-ionic and zwitterionic surfactants, Extraordinary properties and their correlative effecting factors.

阳离子、非离子和两性离子表面活性剂的化学结构、特点和合成方法；同时对表面活性剂的性质及相关因素作一大致的阐述。

On the basis of the training of network, the mathematics model on the relationship between double glow plasma carbonizing and prediction of properties is built.

将人工神经网络理论和算法应用于双辉离子渗碳的研究，在对人工神经网络训练的基础上，建立了双辉离子渗碳工艺与渗层性能预报的数学模型。

Objective: To observe the effects of some cations and their chelating agents on lymphocyte SCE treated by bleomycin.

目的 观察几种离子和离子络合剂对博莱霉素作用淋巴细胞SCE的影响。

The effect of different properties on the formation of delaminated or intercalated structure was investigated such as ion-exchange capacity of MMT, ion-exchange rate of OMT, gallery of OMT, polarity and hardness of molecular chain.

作者详细研究了MMT的离子交换容量和OMT的离子交换率、层间距、分子链极性和硬度对形成聚合物／OMT纳米复合材料的影响。

The nucleation processes and the influence of experimental conditions on the current efficiency and surface morphology of aluminum electrodeposits were studied on Al electrodes from 2:1 molar ratio AlCl3/Et3NHCl ionic liquid.

测定了不同摩尔比的AlCl3/Et3NHCl离子液体在不同温度下的电导率，考察了离子液体AlCl3/Et3NHCl摩尔比为2/1中Al电极上铝沉积的晶核成核过程，以及恒电位电解沉积铝的工艺条件对电流效率和沉积铝表面形貌的影响。

Model occulted corrosion cell and other electrochemical methods were employed to study the characteristic ofbronze pit corrosion, the effects of dissolved oxygen、 pH and richened migrating of 〓 ion on the developmentof cavity in the simulated electrolyte solution. Corrosion inhibition for chloride ion by1-phenyl-5-mercapto-tetrazole pre-film on bronze has been evaluated. The mechanism of interactionbetween PMTA and the bronze surface has been studied by means of AES and XPS techniques.

采用&模拟闭塞腐蚀电池&等电化学的方法，研究了青铜器粉状锈的孔蚀特征，以及模拟电解质溶液中溶解氧、pH值、氯离子的迁移富集对孔穴生长的影响，评价了1-苯基-5-巯基-四氮唑缓蚀膜抗氯离子腐蚀的性能，利用AES、XPS方法研究了PMTA青铜表面成膜作用的机理。

Reinjection is applied for sewage disposal in Daniudi gasfield. Sewage contains some sulfate ion. The main ion in formation water with high salinity includes K, Na, Ca, Mg and Ba. So reinjected sewage combining with original formation water will generate scaling, And the scaling type is mainly sulfate scale.

中文摘要：大牛地气田对污水处理采用回注方法，污水中含有一定量的硫酸根离子，而地层水中也有很高的矿化度，主要离子为钾、钠、钙、镁、钡，因此回注污水与原地层水相混，会产生结垢现象，结垢类型主要为硫酸盐垢。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。