离子的

The selective separation and enrichment of metal ions are two important foreland field in analytical chemistry.

金属离子的选择性分离富集已经成为分析化学重要的前沿研究领域。

The preparation of the nano-TiO〓 powder mixed with copper ions by hydrthermal method and the preparative condition of the ZnO nano-stick by gaseous phase deposition method were discussed in this chapter.

本部分研究了利用水热法制备掺杂铜离子的纳米TiO〓粉体和利用气相沉积法制备氧化锌纳米棒的制备条件。

With the quantity of cation, deposit sequence and its geochemical significance can be found out.

并综合剖面中阳离子的含量，分析了它们在不同剖面层位中的沉淀序列及其地球化学意义。

The formation of polyhalide depends on the combination of central halide ions.

多卤化物的形成取决于中心卤化物离子的结合。

The formation of poly halide depends on the combination of central halide ions.

多卤化物的形成取决于中心卤化物离子的结合。

In recent years, the harmfulness of lead ions pollutants and analysis has been one of the hot topics.

近年来，环境样品中铅离子的危害性及其分析测定问题成为人们日益关注的热点。

He made the assumption that the electronic charge is numerically equal to the charge on a hydrogen ion.

他假定电子的电荷数与一氢离子的电荷数相等。

1He made the assumption that the electronic charge is numerically equal to the charge on a hydrogen ion .

他假设电子的电荷数与一个氢离子的电荷数相等。

The action of calicium as a protective agent against inimical ions is not a highly specific function.

钙作为一种保护剂以抗御有害离子的作用，并不表现高度的特效性功能。

Much attention has been paid on reactions of radical ion intermediates in recent years.

近年来，自由基离子的反应是物理有机化学研究的焦点之一。

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。