查询词典 ni

According to the mineralization of Cu-Ni and Pt-Pd deposit, Cu-Ni sulphides were formed by liquation in the late phase of fractional crystallization of magma chamber, and the Pt-Pd mineralization mainly occurred on the process of fluid action after diagenetic stage.

就铜镍和铂钯矿化而言，铜镍硫化物形成于岩浆房分离结晶晚期的熔离作用，而铂钯矿化则主要在成岩期后流体作用阶段形成。

Les chambres en promotion sont encaissées lors de la réservation et ne sont ni modifiables ni remboursables. If cancelled up to 2 days before date of arrival, no fee will be charged.

然而，如您所预订的酒店要求需要缴交押金，这些信息都会列明在"取消条款"条目内，而押金将会直接跟所选择的酒店进行结帐。

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。

It wouldn't be in any of us... ni en toi, ni en moi...

祂不会是你我其中之一。。

The alloy catalyst shows good stability for CO_2 reforming of CH4 during whole test period. The catalytic performance for Ni/Sn alloy is similar to the monometallic Ni .The formation of graphitic carbon was not observed.

在CH4的CO_2重整实验中，在800℃，CH4/CO_2=50：50时，Sn含量为1wt%的Ni/Sn合金催化剂稳定运行48小时无积碳产生，其催化活性与纯金属Ni相似。

Compared with Ni-A coating, Ni-B coating has only needle-shaped Cr rich phase distributing in the spray coating uniformly.

Ni-B样品喷焊层内只有针状富Cr第二相，在整个喷焊层内均匀分布。

Because, let Ni Ni all around, you have to change.

因为，袮让袮身边的一切，都为你改变了。

The heat-reaction characteristics of Ni/Si and TiN/Ni/Si structure and the regularity for forming the NiSi ...

文中对Ni／Si和TiN／Ni／Si的热反应特性以及NiSi薄膜的形成规律进行了详细的研究。

In chapter 4 an abnormal reaction that the nitro group of 1-aryl-2-nitroethenescan be easily replaced by the organic moity of FG-RZnI using Ni〓 and tertiaryamine as catalyst was first given. The experimental results show that in the presenceof catalytic amount of Ni〓 and tertiary amines, the reaction of FG-RZnI andl-aryl-2-nitroethenes give the substitution products l-aryl-l-alkene, instead ofMichael addition products.

通过实验发现，在催化量的Ni〓及叔胺催化下， l-硝基-2-芳基乙烯与烷基碘化锌并不进行Michael加成反应，而是发生1-硝基-2-芳基乙烯中硝基被取代的反应，生成了高产率的1-芳基-l-烯烃，由于此反应的原料易得、反应条件温和、产物的产率高，因而是合成l-芳基-1-烯烃的有效方法。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。