三价的

So, in a solution of the separating-purifying americium process, there is no adsorptio...

研究结果可以为有效地减少或避免放射性物质在容器壁上的吸附损失，以及预示其他三价镧锕元素的吸附性质，提供实验方法和依据。

We has discussed the mechanism of the trivalent synaptic adjustment,and it's important use to control the chiasmata and disjunction of the chromosomes.

本文对此三价体的联会调节机制及其对控制染色体交叉重组和染色体分离所起的重要作用进行了讨论。

It is proved by the study that the coagulation processes of aluminium sulphate in neutral water condition and trivalence ion cations can increase streaming current value remarkably and sensitively .

结果表明，中性条件下铝盐的混凝过程以及三价铁阳离子对流动电流具有较为灵敏的正增值效果。

The mechanisms and prospect of trivalent chromium plating were introduced. And some problems that should be deeply studied were pointed out.

还介绍了三价铬电镀的机理及展望，并提出了有待深入研究的问题。

A process for trivalent chromium electroplating in sulphate system was established.

开发了一种硫酸盐体系三价铬电镀铬工艺，确定了其所使用的阳极，并将所获得的产品相关性能参数与国外同类产品进行了对比。

Carol Pandak says tests found the new vaccine to be thirty percent more effective than the trivalent vaccine.

Carol Pandak表示，试验显示，新的疫苗效用超过三价疫苗的30%。

Trivalent metallic element of the rare earth group.

稀土属的三价金属元素，一种可延展的银白色铁磁体。

All the observations above show that the mechanism of the gas sensitivity of nanocrystalline LaFeO3 films is closely related with the surface adsorption of oxygen and the changeable valance of iron.

通过测试和分析表明， LaFeO3 的敏感机理不仅与表面吸附氧相关，还与表面三价铁离子的变价有关。

Better way to produce Cr III is to electrolyse !

较好的方法是通过电解来获得三价铬

ChapterⅢis the theoretical research of IPO underpricing under fixed-price mechanism.

第三章是固定价格机制下IPO抑价的理论研究。

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。