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The plant growth and absorption of Zn and Cd by plants in the co-crop were studied in pot experiment with two ecotypes of Sedum alfredii Hance and a low-accumulating crop on heavy metals contaminated-soil.

本论文取得的主要研究成果如下：（1）土壤淋溶液测定结果表明，玉米和超富集东南景天套种能显著降低污染土壤Zn、Cd的淋溶。土壤水溶性Zn、Cd含量在种植植物后显著降低。

The results showed that the N atom in amidogen of CTS coordinates with Cd in the coordination compounds of Cd-CTS,while in the coordination com...

结果表明：在壳聚糖-Cd配合物中的配位原子是壳聚糖—NH2上的N原子，而在壳聚糖-Ce、壳聚糖-Zr、壳聚糖-Pb配合物中不仅壳聚糖—NH2上的N原子参与了配位，同时OH上的O原子也参与了配位。

The extraction effects of Zn and Cd from chloride medium with primary amine N1923 and 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester are studied.

考察了伯胺N1923与中性有机磷类萃取剂DEH／EHP的混合体系在盐酸介质中对Zn和Cd的萃取效应，研究了萃取机理，并研究了此混合体系对Zn和Cd的分离。

The probe nuclei 62 Zn/ 62 Cu, 187 W/ 187 Re and 111 In/ 111 Cd for perturbed angular correlation studies are produced at the CIAE HI 13 tandem accelerator through the nuclear reactions 63 Cu(p,2n) 62 Zn,Cd 111 In and 186 W 187 W.

在中国原子能科学研究院HI 13串列加速器上通过6 3 Cu(p ，2n) 6 2 Zn、Cd 111In和186 W 187W核反应产生6 2 Zn/ 6 2 Cu、187W / 187Re和111In/ 111Cd扰动角关联探针核，测量了生成这些探针核的核反应截面。

With microwave digestion and general digestion , the content of Pb and Cd in shrimp samples was measured by graphite furnace atonic absorption spectrometry .

采用微波消解与常规消解2种方法消解对虾样品，石墨炉原子吸收法测定其Pb、Cd的含量，对样品中Pb、Cd的微波消解与常规消解分析方法做了系统的比较。

The results showed that Cd and Zn mainly occurred in the fractions extracted by BCR method, namely, weak soluble fraction, reducible fraction and oxidisable fraction, which were 35.0%, 49.7 and 12.9% for Cd, 17.6%, 16.6% and 21.4% for Zn, respectively, in surface sediment.

结果表明，表层沉积物中的Cd和Zn主要以可提取态（即弱酸溶解态、可还原态和可氧化态）存在，其中，Cd在弱酸溶解态、可还原态和可氧化态中的含量分别为35.0%、49.7%和12.9%；Zn在三者中的含量也分别达到了17.6%、16.6%和21.4%。

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You plug the CD-ROM into the multi-speed CD-ROM drive of your high-performance PC, and begin the course.

你将CD-ROM放入高性能计算机的多速CD-ROM驱动器，从而开始学习进程。

Cultivars: Wuyujing No.3,a Cd tolerant cultivar and Shanyou 63,a Cd susceptible cultivar,were grown hydroponically in this study to investigate the effects of Cd applied at realistic levels on photosynthetic parameters,soluble sugar and plant growth.

以较耐镉(武育粳3号，WYJ)和镉敏感(汕优63，SY63)的2个不同耐性水稻品种为材料，采用溶液培养试验，研究了镉处理(Cd.1.0和5.0μmol/L)对水稻幼苗光合作用、可溶性糖和生长的影响。

Two substitution derivates of β CD His and β CD His 2 was synthesized and characterized respectively,which simulate deoxyribonuclease,their activity of hydrolysis deoxyribonucleic acid are compared with DNaseⅠ′s.

合成了β-环糊精的组氨酸一取代和二取代衍生物(简写β- CD- His和β- CD- His2 )并对其结构进行了表征。

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。