查询词典 praseodymium

A metallic mixture, once considered an element, composed of neodymium and praseodymium .

钕镨合金一种金属混合金属，曾被当作一个元素，是由钕和镨组成的

The results showed that a highly significant increase in DNA migration in DNA-damaged lymphocytes was induced by three different concentrations of yttrium and praseodymium compared with the control,The percentage of DNA-damaged have genetic toxicity.

结果表明，与对照相比，3种不同浓度的氯化钇和氯化镨均可引起淋巴细胞DNA受损后DNA迁移率的显著升高，受损伤细胞的百分率与对照差异明显，提示氯化钇和氯化镨具有一定的遗传毒性。

In this paper, we reported the spectroscopic properties of praseodymium ions Pr(superscript 3+ doped transparent oxyfluoride glass ceramic excited with different laser lines, such as 532, 514.5 and 476.5um.

用不同的激发波长532，514.5，476.5nm，研究稀土Pr(上标 3+)掺杂的透明氟氧化物玻璃陶瓷中Pr(上标 3+)在LaF3微晶环境和玻璃环境中的不同的荧光行为。

Results Frequency of micronucleus in human blood lymphocytes increased significantly by treatment with yttrium chloride and praseodymium chloride, and it increased with the concentration of the both agents, to a certain range.

结果 钇和镨能够引起人血淋巴细胞微核率显著升高，在一定范围内，微核率随氯化钇、氯化镨处理浓度的增大而提高。

Neodymium and samarium find use in alloys for magnets and lasers, europium in television screens, praseodymium in electric motors, and so on.

钕和钐可以用在磁或激光材料；铕可以用于电视屏幕；镨可以用于电动机，等等。

The infrared spectra data in substitution of praseodymium for Yttrium in 123 system are similar to that in the decreasing of oxygen content in the YBCO system and the disappeared optical modes can reappear when the content of Pr increases.

Pr的加入类似于在YBCO中脱氧的作用，也能使消失的光学活性模重新显现。

Finally, a SONOS-type memories by using high-κ dielectric materials Praseodymium oxide trapping layers was proposed and demonstrated.

最后，我们使用另一种高介电常数材料当捕陷层制作出了SONOS型非挥发性快闪记忆体，此材料为氧化镨。

The optimal preparing conditions were as follows: dosage of chitosan 1.0 gL^(-1), concentration of praseodymium 0.1 molL^(-1), preparing time 8 h, particle size 0.1 mm.

采用负载镨的壳聚糖作为含氟水的吸附剂，其最佳制备工艺条件为：壳聚糖用量1.0 gL^(-1)，Pr(上标 3+)浓度0.1 molL^(-1)，反应时间8 h，吸附剂粒径0.1 mm。

We obtained the infrared reflection spectra of Pr〓Y〓 Ba〓Cu〓O〓 system for the first time, in which the existence of Pr〓 is confirmed and found the reason, which the superconductivity descends along the increasing of the content of praseodymium, should be the great decrease of the carrier density.

我们首次对Pr〓Y〓-〓Ba〓Cu〓O〓进行了系统的红外光谱研究，证明了Pr的价态接近于+4，有效地解释了该体系随Pr含量增加超导性减弱的原因，在于载流子极大减弱。

In November 2005, to participate in metalworking practice, including fitter, praseodymium washing, several washing, welding, casting, and so on.

2005年11月，参加金工实习，包括钳工，镨洗，数洗，焊接，铸造等。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。