查询词典 ion

The combination of ion-pair extraction technology with reversed-phase ion-pair chromatography method provide a effective inspection measure for the sulfonates in water.

样品的四丁基溴化铵和二氯甲烷离子对萃取方法与反相离子对色谱分离联用，为水体中芳香族磺酸盐的检测提供了可靠的监测手段。

The triple quadrupole mass spectrometer with the turbo ion spray interface was operated in the positive ion mode and the temperature of the turbo was set at 105℃ and the ionization voltage was 3300V. The multireaction monitoring mode was employed to scan the ions.

三重四极杆质谱采用正离子模式，离子采集方式为多反应监测模式，离子源温度105℃，离子源电离电压为3300V，雾化气流速500L/h。

The isopiestic molalities and water activities have been determined for the systems Li_2SO_4-H_2O and Li_2B_4O_7-H_2O at 273.15K in the ion strength ranges of 0.6063~ 1.7640 mol · kg~(-1),and 0.1069—0.6478 mol· kg~(-1) respectively and for the systems Li_2SO_4-H_2O, Li_2B_4O_7-H_2O and Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K in the ion strength ranges of 0.3577—5.6378 mol·kg~(-1), 0.1747—2.4497 mol·kg~(-1), 0.2394—5.5399 mol · kg~(-1) respectively by the isopiestic method using an improved equipment.

本论文利用改进的等压设备和实验方法测定了273.15K下纯盐水溶液Li_2SO_4和Li_2B_4O_7离子强度范围分别为0.6063～1.7640mol·kg~(-1，0.1069～0.6478mol·kg~(-1)以及298.15K下纯盐水溶液Li_2SO_4和Li_2B_4O_7离子强度范围分别为0.3577～5.6378mol·kg~(-1，0.1747～2.4497mol·kg~(-1)和Li_2SO_4-Li_2B_4O_7-H_2O体系混合盐水溶液离子强度范围为0.2394～5.5399mol·kg~(-1的等压平衡浓度和水活度。

The osmotic coefficients and saturated vapor pressures have been calculated at the different temperatures .The experimental values of the osmotic coefficients for the Li_2SO_4-H_2O system were consistent with the values in the references. The results revealed the rules of the changing in osmotic coefficients and saturated vapor pressures with ion strengths and the molality fractions of Li_2B_4O_7 at different temperatures. The isopiestic equilibrium molalities were correlated by using the modified and the extended Zdanovskii rules for non-ideal mixtures, and obey well the Zdanovskii rules. The ion interaction parameters of Pitzer model have been determined by using the two methods for Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K system.

本文计算了不同温度下该纯盐体系和混合盐体系的渗透系数和饱和蒸汽压，并将298.15K下的纯盐溶液渗透系数的实验值与文献值进行比较，取得了相一致的结果；揭示了不同温度下渗透系数和饱和蒸汽压随离子强度及Li_2B_4O_7质量摩尔浓度分数yb的变化规律；本文用Zdanovskii规则修正式和扩展式关联了298.15K下该混合盐体系的等压平衡浓度之间的关系，计算结果表明用这两个方程可以描述该体系在全浓度范围内的等压平衡浓度间的关系。

An ion consisting of a single atom is a monatomic ion .

离子组成的单个原子是一种单原子离子。

A strain screened from printing and dyeing wastewater had high adsorption capacity on copper ion,the adsorption characteristics of it on copper ion accorded with Langmuir and Freundlich adsorption isotherms,and was monomolecular adsorption.

从印染厂废水中筛选出一株对金属铜离子具有较高吸附性能的菌株，其对铜离子的吸附特征符合Langmuir吸附等温式和 Freundlich 吸附等温式，为单分子吸附。

The results indicate that the amount of chloride ion sedimentation is attenuated by the natural logarithm function of distance from external surface of the sample,and the corresponding attenuation rate is changed greatly by the ratio of water to cement and mineral admixture such as slag. Chloride ion is mainly deposited in surface zone under dry-wet cycle condition.

试验结果表明：混凝土内部不同位置处水溶性氯离子的沉积量与离表面的距离之间存在自然对数的衰减关系，且混凝土的水胶比和矿渣等因素对其衰减速率存在较大的影响。

The proportion of negative ion and positive ion are really important.

负离子与正离子的比例具有一定的重要性，因为负离子的功能是能中和正离子的有害影响。

Generally the positive ion is harmful for the body, and the negative ion is healthy.

一般来说，正离子对我们人体是有害的，负离子则相反。

Because the function of negative ion is able to balance the bad affection of positive ion.

在二十世纪的初期，负离子在大气层中的比例为二比一，不过根据最近的研究报告指出，目前该比例已经完全相反，成为一比二的严重情况。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。