查询词典 praseodymium

The light absorption in the near infra red region of praseodymium, samarium and ytterbium solutions.

唐高1，朱基千1，2，"掺镨(Pr3+)和铥(Tm3+)氟化镓铟玻璃标准的和改进后的贾德奥菲尔特理论研究"，光学学报 27，

Objective:To find out the influences of low dosages of samarium chloride (SmCl3) and praseodymium chloride (PrCl3) on structure and function of peritoneal macriphage in mice.

目的：探讨小剂量三氯化钐(SmCl3)，三氯化镨(PrCl3)对小鼠腹腔巨噬细胞形态结构及功能的影响。

Since this year, RE prices have increased obviously, and offered price for praseodymium neodymium oxide now averages at about RMB181,000/ton, up 38.16% from the beginning of this year.

今年以来稀土价格明显上涨，目前稀土品种中氧化镨钕平均报价在18.1万元人民币/吨左右，比年初上涨38.16%。

Get Mark Smith talking about his company's biggest asset and the feeling is one of being transported back to a high-school chemistry class. Cerium, lanthanum, praseodymium, neodymium ...

马克。史密斯是丹佛莫利矿业公司的首席执行官，听他讲述该公司最大的资产，感觉就像回到了中学的化学课上。

For instance, praseodymium forms the core of carbon arc lights that are used by the motion picture industry for studio lighting.

性状：黑色粉末，密度6.88 g/cm3，熔点2042℃，不溶于水，能溶于酸生成三价盐类。导电性良好。

From the structural analysis of three praseodymium complexes, we could draw a conclusion that as the dentate arms of carboxyl group on ligands elongating, the coordination numbers of Pr and the coordination modes of ligands increase, and the mean distances between metallic atoms of metallic helices existing in these complexes augment.2. By altering 5-substituting group of isophthalic acid three series of lanthanide complexes 8～19 with 5-methylisophthalic acid and 5-nitroisophthalic acid have been prepared.

从得到的三个配体的镨配合物的结构分析可以看出，随配体的羧基齿臂的增长，Pr的配位数逐渐增大，配体的配位模式增多，配合物中存在的螺旋金属链中的金属间平均距离增大。2、通过改变间苯二甲酸配体的5位取代基，制备了5-甲基间苯二甲酸和5-硝基间苯二甲酸的三个系列稀土羧酸配合物8～19。

Rare earth elementsof praseodymium, neodymium and erbium were added into the media to investigate theireffects on the mycelial growth and polysaccharide formation by Russula sp.

研究了稀土元素镨、钕、铒对红菇深层发酵中红菇菌丝生物量、胞外多糖、胞内多糖、总多糖、最终pH和多糖产率的影响。

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。