查询词典 yttrium

It suggests that rare-earth elements yttrium and praseodymium have certain genotoxicity.

提示稀土元素钇和镨具有一定的遗传毒性。

The results show that the isotherms of the interaction between praseodymium and yttrium ions and the sediments are the stepped.

结果表明，黄河水中Pr3+和Y3+与沉积物相互作用的吸附等温线具有一个"拐点"两个"平台"，是一种台阶型的二级交换等温线。

The effect of DNA damage in human lymphocytes induced by yttrium chloride and praseodymium chloride was detected using SCG assay.

用单细胞凝胶电泳法检测了稀土化合物氯化钇和氯化镨对人外周血淋巴细胞的DNA损伤效应。

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。

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。

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。

With scandium and yttrium, they make up the rare earth metals.

加上钪和钇，一起组成稀土金属。

A mineral consisting of scandium yttrium silicate; a source of scandium.

一种由钪钇硅酸盐组成的矿物，是钪的来源。

Yttrium'.'' silicate; a source of scandium.

硅酸盐组成的矿物，是钪的来源。

The first is about the separation of rare earth elements scandium, yttrium and lanthanum, and the separation of flavones in the hull of water chestnut by High Performance Centrifugal Partition Chromatography .

本论文利用高效离心分配色谱仪进行了稀土元素钪、钇、镧的分离研究和菱角壳中黄酮类化合物的分离研究；探讨了氨基酸在双水相体系中的分配行为；利。。。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。