查询词典 NI

The wall of the burning chamber was pitted at the beginning then gradually burnt through.By means of the Bunsen burner,tubular furnace and XRD,SEM,EDS,this special type of high-temperabure destruction was studied.It was found that the phenomenon is resulted from the combined action of CO and lower hydrocarbon on Ni-Cr alloy.Firstly,Ni-Cr alloy is carbonized and selectively oxidized by CO to produce Cr2C,Cr3C2 and Ni-Cr2O3,while the capillary cracks in the surface layer are formed simultaneously.

作者利用几种现代手段和试验方法，对这一燃烧破坏现象进行了系统地模拟研究，发现这是CO和低分子烃在高温下对合金共同作用的结果：第一步CO作用使合金表层发生氧化和碳化，造成裂隙；第二步低分子烃扩散进裂隙并在Ni-Cr2O3微粒的催化下，裂解生在石墨炭并包复在Ni-Cr2O3微粒周围，体积增大。

Ferrotitanium , nickel and sucrose to carbonize the sucrose. TiC/ Fe-Ni composite coatings were prepared by plasma spraying of the Ti-Fe-Ni-C composite powder .

以 TiFe粉、Ni粉和蔗糖为原料，通过蔗糖的热分解碳化制备 Ti-Fe-Ni-C系反应热喷涂复合粉末，并利用等离子喷涂制备了 TiC/ Fe-Ni复合涂层。

On the basis the present results and the previous reports on syn-syn carboxylate-bridged Ni complexes, we find that the coplanarity of Ni-O-C-O-Ni dominates the magnetism.

基于本工作和文献报道的含syn-syn 羧酸混合桥联镍配合物的磁性数据，我们总结出下面结论：Ni-O-C-O-Ni的共面性与否决定了配合物的磁性。

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。

In the raw metal powders were continually solid-soluble into Ni matrix and the lattice parameter of Ni-base solid-solution was increased with processing time.

在球磨过程中，原料中的Cr-Ni基母合金以及W，Mo，Ta等元素不断向Ni基体中周溶，使Ni基固溶体γ_的点阵参数逐渐增大。

Then the chemical reduction of[Ni(N_2H_4)_x]~(2+) may occur along the magnetic line of force due to the enhanced electrode potential,leading to the formation of uniform 1 D wires.While with the increase of the concentration of Ni~(2+), the reaction rate increases too,so it can be deduced that the chemical reduction of [Ni(N_2H_4)_x]~(2+) may be taken place quickly in the whole system,leading to the formation of isolated particles coexisted with the wires composed of microspheres which formed along the magnetic line of force.

而当Ni~(2+)浓度较高时，反应速率相对较快，[Ni(N_2H_4)_x]~(2+)可能在还没来得及迁移到磁力线之前，还原反应就已经很快的在整个体系中发生了，导致出现了产物中纳米球和一维镍线共存的现象。

The formation of our 1D nickel wires can be ascribed to the cooperative effect of the reaction rate and magnetic field.The reaction rate in the system is controlled mainly by adjusting the reactant concentration when other reaction conditions are fixed.When the concentration of Ni~(2+) is low,the reaction rate is correspondingly slow,so the complex[Ni(N_2H_4)_x]~(2+) preferentially migrates to the magnetic line of force since paramagnetic metal ions are attracted toward the maximum field.

当反应物Ni~(2+)浓度较低时，反应速率相对较慢，[Ni(N_2H_4)_x]~(2+)优先选择迁移到磁力线附近并且沿着磁力线方向排列，导致电极电势增大，于是[Ni(N_2H_4)_x]~(2+)的化学还原反应也是沿着磁力线发生，结果导致了镍纳米线的形成。

No cracks and holes had been detected. Presence of elements Ni, P and Si were in the simple state of metallic bond Ni, P element and covalent bond SiC, respectively.

元素存在形态主要表现为Ni和P以单质的形式存在，Si以共价健SiC的形式存在，Ni-Ni之间以金属键进行结合。

Chemisorption of H_2 on Ni, Cu, Mn, Ni-Cu and Ni-Mn cluster was computed with an improved LEPS method.

本文采用改进的LEPS势研完Ni、Cu、Mn、Ni—Cu和Ni—Mn表面H_2化学吸附问题。

The Molecular Interaction Volume Model is introduced for the prediction and fitting of the activities of liquid alloys Ni-Mg-Cu,Ni-Al-Si and Ni-Cu-Co in the ternary systems.

对Ni-Mg-Cu，Ni-Al-Si及Ni-Cu-Co三组三元系预测的总平均相对误差及最小的拟合总平均相对偏差分别为12.0%和9.0%，表明分子相互作用体积模型比较适用于这类液态合金的活度预测

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。