查询词典 CU

The needed potential for the oxidative dissolving of chalcocite increases gradually with the decrease of Cu/S ratio in this mineral during leaching of chalcocite. When chalcocite changes fully into covellite the needed potential for leaching to produce element sulfur and Cu〓 maintains unchangeable. The mixed culture of thiobacillus ferrooxidans was separated from a acid mine drainage, During culturation of bacteria there is following relation between the potential of solution and the ratio of /, E=0.64+0.0791g {/}.

绘制了Cu-S-H〓O系和Cu-S-Cl-H〓O系的电位-pH图，计算分析后得出在含Cl〓体系中浸铜时不会形成固态CuCl的结论；在辉铜矿氧化溶解时，固相的铜硫比逐渐降低，溶解所需的电位逐渐升高，到完全转化为铜蓝时，其氧化溶解产生元素硫和Cu〓所需的电位不再升高。

Cu occurrence characteristic in root and leaf researched by chemical agent order extraction and enzymatic hydrolysis.

运用差速离心技术研究了Cu在紫鸭跖草亚细胞内的分配特征，结果表明，细胞壁是Cu分布的主要位点之一，其次，叶绿体中的Cu占叶片全Cu的较大比例。

The digital analysis of the three standard samples of the Al-based alloy with different content of Cu, and the probe into the quantitative analysis that employs the spectrums of Cu 510.55 nm and Fe 510.75 nm as the analysis spectrum and comparison spectrum, indicate the positive relationship between the content of copper and the intensity ratio of the analysis and comparison of spectrum.

对3种不同Cu元素含量的铝合金标准样品进行数字化分析测定，探索选用Cu 510.55nm谱线和Fe 510.75nm谱线分别作为分析谱线和比较谱线进行定量测定的方法，数据显示分析谱线和比较谱线的强度比值与Cu元素含量呈正比关系。

Dialkylmethylamine is the main by-product in the amination reaction of fatty alcohol with dimethylamine catalyzed by Cu-Ni catalysts.

这是对于Cu-Ni、Cu-Ni-Zn、Cu-Ni-Mg及Cu-Ni-Zn-Mg四个系列的催化剂的普遍规律。

Under the experimental conditions, the evaluation of catalytic activity on direct decomposition of NO show that the presence of Cu is necessary for improving activity at 600~800℃ among La0.9Ce0.1Fe(subscript 0.8-x)Co0.2YO3(Y=Cu, Zn, Ni) series, and in which L.a0.9Ce0.1Fe0.7Co0.2Cu0.1O3 has the highest activity, the conversion of NO decomposition maintains 80% and nearly 100% at 750℃. H2-TPR result proves that the higher activity is related to the mobility of lattice oxygen which is beneficial to the reproduction of active site for NO decomposition.

在实验条件下，对NO的活性测试结果表明，L0.9Ce0.1Fe(下标 0.8-x)Co0.2YO3(Y=Cu， Zn， Ni)系列催化剂在600~800℃范围内，掺杂Cu的复合氧化物具有较高的催化分解活性，其转化率始终保持在80%以上，反应温度为750℃时，几乎100%转化。H2-TPR结果证明，其催化分解活性高的原因是Cu的掺入使晶格氧活动性增强。

In addition to, the thinness of the intermetallic layers of Sn-Ag-Cu with the copper plate are compared with that of Sn37Pb. The results show that Ag、Cu has influence on the solidus ...

结果表明，Ag、Cu对Sn-Ag-Cu系焊锡合金的熔点、铺展性和电导率都有影响，当Ag质量分数为3%，Cu为2.8%，焊锡合金具有最佳的综合性能，且与铜基板的扩散层厚度大于Sn37Pb。

Compared with the joint brazed with Cu-Ti filler metal, the content of Cu in the reaction layer adjacent to the stainless steel is higher than the joint brazed with Cu-Co-Ti filler metal, so is the content of Nb in brazing seam.

与Cu-Ti钎料接头相比，Cu-Co-Ti钎料接头中钎缝与不锈钢侧的反应层中Cu含量较高，钎缝中Nb含量也较高。

Pulse radiolysis is the best method for studying the kinetic reaction of 〓 and SOD mimics. However, when pulse radiolysis was used to investigate the kinetic reaction, whether the copper complexes changes between Cu and Cu or Cu and Cu could not be distinguished.

脉冲辐解是研究〓与SOD模型物的动力学反应的最好的方法，但是采用该方法不能确定在催化过程中，究竟其是采用Cu机理还是Cu机理。

Compared with the single pollution, the eco-toxicity of compound pollution of As+Cd and Cu+Cd becomes stronger, which preemie a synergistic effect, as far as the lethal concentration to the cell of duckweed's lemma is concerned; As+Cu and As+Cu+Cd is inclined to an antagonistic effect of which the eco-toxicity of compound pollution becomes weaker.

与单一污染相比，As+Cd和Cu+Cd复合污染对浮萍叶绿素毒性增强，表现为协同作用，加强了对浮萍叶细胞的伤害；而As+Cu和As+Cu+Cd复合污染对叶绿素联合毒性作用趋向于毒性减少的拮抗作用。

Porous alumina templates with different apertures were fabricated by changing the oxidation voltage in two-step anodic oxidation, and then Cu nanowires were synthesized in porous alumina by the alternating current electrochemical deposition method. The Cu/PAA was analyzed by SEM and XRD, the results have shown that Cu nanowires were indeed synthesized in porous alumina which had the same diameter and good structure of wire grating.

通过改变二次氧化过程中的氧化电压，制备了不同孔径的多孔Al模板；采用交流电沉积的方法，制备了含Cu阳极PAA膜。X射线衍射分析表明，阳极PAA膜上确有Cu生成；扫描电镜显示，Cu纳米线粗细均匀，具有很好的线栅结构。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎