查询词典 ions

M obtained from the Guanting Reservoir were mixed with nitrate copper solution to study the distribution characteristics of copper ions adsorbed on the surface of sediment particle s.

现有的水体中泥沙与污染物质关系方面的研究，多着重于吸附模式的理论探讨和吸附总量的实验研究，而对泥沙颗粒的表面形态和污染物质在泥沙颗粒表面的分布研究较少。

Moreover, the influence of carbonate on the adsorption process was also studied. Under the anoxic condition, the AVS in Guanting Reservoir sediments controlled the partitioning of most of the metal ions between sediments and pore water.

对于渭河潼关沉积物，由于在组成上和黄土有很大的相似性，本文建立了与黄土类似的表面络合模型，并成功的模拟了潼关沉积物的表面酸碱反应特性及其对铜和镉的吸附特性，同时探讨了碳酸盐在吸附中的影响。

The AVS-SEM distribution in the sediments of Guanting Reservoir and Yongding River was studied and the metal concentration in the water above the sediments and the pore water was measured. Based on the results, the reaction between the sediments and metal ions were discussed and the heavy metal pollution of the sediments in Guanting Reservoir and Yongding River was evaluated preliminarily.

官厅水库沉积物，由于处于缺氧性环境，沉积物中的酸可挥发性硫化物控制着大多数金属离子在沉积物和孔隙水两相间的分配，本文通过现场采样，分析了官厅水库和永定河沉积物中的AVS—SEM的分布，同时测定了沉积物上覆水以及部分样点的孔隙水中的重金属浓度，探讨了沉积物与重金属离子的作用；并根据采样分析结果对官厅水库及永定河沉积物中的重金属污染做了初步评价。

There are action of exchanging electron and energy in square 4L loop which is made of neighboring 4 iron ions in dilute gold-iron and copper-iron alloy By means of this action, thermoelectrical potential of alloy, magnetic moment of iron ion, Curie temperature, maximal value and minimal value temperature of resistance, specific heat increase and decrease entropy of conduction electron and negative magneto-resistance effect are calculated in this paper and the results are equal to testing value.

利用稀释的金铁和铜铁合金中相邻4个铁离子构成的正方形4L回路上的铁离子间存在交换电子和能量的作用过程计算了合金的热电势、铁离子磁矩和居里温度、电阻极大值温度和极小值温度、传导电子的比热增加和熵值减少、负磁阻效应等，与测量值相符。

Produce the basic conditions for thermonuclear reaction, first nuclear fuel must be heated to a temperature high enough (several tens of millions of degrees), this time the nuclear fuel has been ionized into a mixture of electrons and ions, namely plasma; Second, we must binding them together so that they have conducted nuclear reaction time.

产生热核反应的基本条件，一是核燃料必须加热到足够高的温度，此时核燃料已被电离成电子和离子的混合体，即等离子体；二是要将它们约束起来使它们有进行核反应的时间。

According to element bonding parameter topological index and calculate topological index of 36 variety metal ions.

本文应用元素键参数拓扑指数计算了36种金属离子的拓扑指数，用于关联金属离子与氨三乙酸配位稳定常数的研究，得到了好的线性相关性。

The results indicate that the main phase of the nephrite cat's eye is tremolite,and the main impurity ions are Fe~(3+), Fe~(2+) and Mn~(2+).

软玉猫眼的主要杂质离子为Fe~(3+)，Fe~(2+)和Mn~(2+)，其Raman吸收频率主要出现在940～1105，650～760cm~(-1)和450～510cm~(-1)范围内。3600～3800cm~(-1)范围内—OH伸缩振动Raman谱带分裂，并向低波数方向位移，这主要与Mg~(2+)和Fe~(2+)的含量有关。

Aim The relations between the fine-spectra and local structure of 3d3 ions at trigonal crystal field have been investigated.

目的研究三角晶场中3d3离子光谱精细结构和晶体局域结构之间的关系。

In the compound 2, the Co ions are five-coordinated in trigonal bipyramidal geometry.

而在化合物2中，Co离子是五配位三角双锥几何体。

Methods: Triphenylmethane dyes MG and CV respectively react with some negative ions under suitable conditions to form a hydrophobic ion-associate.

孔雀石绿和结晶紫都是三苯甲烷类阳离子染料，在一定条件下，将其与大阴离子反应，形成离子缔合物而失去亲水性。

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。