查询词典 Zr

Multistep deposition process has been adopted in the preparation of superfine inorganic composite antibacterial powder, Ag~+ as crystal nucleus, packed outside by the hydroxid and phosphate precipitate of Ti and Zr elements etc., The optimal process conditions have been found from one-factor influence tests and multi-factor orthogonal test,and the optimal process conditions were: Ag iron was imported by silver ammine, and then 100ml Titanyl sulphate solution mixing with zirconium sulfate keep hot at 90 ℃ for 30 mins, and the Zr/Ti ratio is 0.15,and Na_2HPO_4 was added in the end.

超细无机复合抗菌粉体的制备采用以Ag~+沉淀物作为晶核，外包裹Ti、Zr等金属的氢氧化物沉淀和磷酸盐沉淀物的多步沉淀工艺，并利用单因素和正交试验法对制备工艺进行了优化，其最佳工艺条件是：Ag~+以银氨络合物引入，沉淀钛锆的反应时间为0.5h，反应温度为90℃，水解反应时体系总液量为100ml、Zr/Ti为0.15，沉淀物经水洗、干燥，于700℃煅烧4.0h；即得最终产品。

The synthesis of Zr-Zr bimetallic complexes was studied.

1对Zr-Zr型双核茂金属化合物的合成进行了进一步的尝试。

Defines a d imensionless initial height of a heat source to reflect the effect of a heat source on heat distribution regularity of an air conditioned room with upward displacement, using variance analysis method obtains the dimensionless relationship between the heat distribution resularlty and other factors as Arn, Zr,ZJ and DIHHS, and reveals their importance in desoendins ceder as Arn, Zr, DIHHS and Zj.

提出了用热射流起始无因次高度来反映热源起始高度对下送风空调房间热分布系数α的影响，利用回归原理得出了α随阿基米德数Ar_n、热射流自由度Zr、机械射流自由度Zj及热射流起始无固次高度变化的准则关系式。用连结向量图法和对实验数据回归公式的F检验，对影响室内热分布规律的各个因素进行了分析，发现这些因素均为主要影响因素，其影响的相对主次依次为Ar_n，Zr，和Zj，回归结果具有很强的显著性。

In the first stage, the ratio of endogenesis GA3 to IAA in new corm rised on the whole, the ratio of IAA to ZR in new corm and cormel was rather low, the case of ABA to GA3, ZR and IAA was quite short.

籽球形态建成初期，新球内源GA3与IAA比值整体表现为上升，新球和籽球IAA相对ZR含量较低，ABA与GA3、ZR和IAA比值较低。

The experimental results show that, Mn〓O〓 and Na〓Zr〓, which were cubic crystal and floccule in catalyst surface respectively, were active species, Mn〓O〓 was main active species and addition of Zr further activated methane molecules to improve methane conversion.

分析结果表明，Mn〓O〓和Na〓Zr〓是多组分甲烷氧化偶联催化剂的活性组分，在催化剂表面上分别以立方晶体和絮状物存在，且Mn〓O〓起主要作用，Zr的加入进一步活化了甲烷分子，提高了甲烷的转化率。

HC1, which had the p-hydroxy in its stucture, could form steady ternary equilibrium system HC1-Zr-EDTA with [Zr(H2O)2EDTA].

半花菁染料HC1是一拥有邻二羟基酚型结构特征的染料分子，可与Zr-EDTA螯合物形成稳定的三元螯合物体系HC1-Zr-EDTA。

ABSTRACT Amorphization of Cu-Zr system by mechanical alloying of elemental Cu and Zr powder mixtures (30-65at% Cu) and mechanical grinding of the alloys with Cu concentration ranging from 59 to 75at% have been extensively investigated. The structural changes, crystallization behavior as well as atomic short range ordering were followed by differential scanning calorimetry , X-ray diffractometry and nuclear magnetic resonance spectroscopy .

本文采用多种技术系统地研究了球磨Cu和Zr混合粉末制备的Cu〓Zr〓（x=30，33，40，50，55，59，65）非晶合金的形成过程和球磨金属间化合物得到的Cu〓Zr〓（x=59，65，70，75）非晶合金的形成过程，比较了它们形成过程的异同，同时研究了球磨形成的非晶合金的晶化行为以及原子短程有序结构，并与急冷非晶合金作了详细的比较。

The content of GA exhibited on imbalance in different tissue of seedling. The content of IAA, GA and ZR of male sterile lines were lower than maintainer lines to some degree, especially in the stage of archesporial and meiosis. IAA, GA and ZR are the important plant hormone which regulates lots of activity of plant. Their deficient must interfere on the development of anther and result in abortion.

在花期叶片激素含量在保持系和不育系之间变化较大，蕾期不育系的IAA、GA和ZR含量出现不同程度的亏缺，尤其是从小蕾期到大蕾期阶段，ogura不育系、改良萝卜不育系的IAA、GA和ZR含量都极显著低于保持系IAA、GA和ZR是植物体内重要的信号物质，可调节植物的多种生命活动，其亏缺影响花粉的正常发育，从而引起败育。

Zr can partially replace Ti in the silicides because the free energy of formation of Zr-Si bonds is greater than that of Ti-Si bonds and both Zr and Ti elements are in group Ⅳa of periodic table.

由于Zr-Si粘合体的自由能大于Ti-Si粘合体的，Zr原子更多地溶于硅化物中，替代Ti原子形成新的硅化物〓。

On the other hand, the enrichments of Pb and Sr at the rim of the interstitial rutiles suggest influence of subsequent fluids on the compositions of rutiles, which could have affected Zr of the rutiles as well This study provides the evidence for the Zr diffusion at a high temperature and fluid activity that could have contributed to the lower temperatures (598-827℃) recorded by Zr-in-rutile for the eclogites from the Dabie-Sulu UHP terrane.

这些研究结果为金红石中Zr在高温下的扩散作用和后期流体活动的影响提供了重要证据，这可能是利用金红石Zr含量地质温度计计算的苏鲁一大别榴辉岩变质温度(598~827℃)偏低的主要原因。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。