查询词典 NI

The experiment results indicate that higher phase splitting speed and extraction factor can be achieved when low-carbon alcohols such as n-butanol are used as organic solvents; by using five different N-carbobenzyloxy-L-amino acids as chiral ligands that are formated with Cu(superscript 2+) or Ni(superscript 2+), it is found that as a ligand, Z-Phe has a low extraction factor, while Z-Hyp, Z-Pro, Z-Glu, Z-Val have higher extraction factors, and among these, Z-Val has the highest distribution coefficient; pH value of extractant, when near to the PI of phenylalanine, helps to improve extraction resolution effect; temperature has no obvious effect on the resolution result.

结果表明：以低碳醇类正丁醇作有机稀释剂，所用5种N-苄氧羰基氨基酸（分别为Z-Phe、Z-Hyp、Z-Pro、Z-Glu、Z-Val）与Cu(上标 2+)或Ni(上标 2+)形成手性配位体后，以Z-Val作手性配体，萃取相pH值接近苯丙氨酸等电点时，萃取拆分效果最佳。

The aging test and bump shear test of Sn3.5Ag solder bumps reflowed on the Au/Ni/Cu pad through ISHR were carried out.

为此，采用ISHR进行了无铅钎料Sn3.5Ag在Au/Ni/Cu焊盘上的重熔实验、高温老化实验以及凸台剪切实验。

The corrosive wear behavior of Ni-P platings with different phosphorus contents in strong alkali solutions has been studied.

研究了不同磷含量的Ni-P镀层在强碱介质中的腐蚀磨损行为。

The morphology of electroless platings of Ni P UFD was studied by optical metallographic microscopy and SEM, the age temperature's effect on the microstructure of this platings was studied using XRD, TEM and DTA, and the age temperature's effect on microscopic hardness was explained.

利用光学金相显微镜和 SEM观察了 Ni-P-超细金刚石化学复合镀层形貌，用 XRD、TEM及 DTA研究时效温度对镀层组织结构的影响，并解释了时效温度对镀层显微硬度的影

X 6.36(3)? is formed.Liquid-liquid extraction experiments, between twelve heterocyclic thioalkoxycalix[4]arene on the lower rim, fifteen heterocyclic thioacetamidecalix[4]arene on the upper rim and Na~+、K~+、Cs~+、Mg~(2+)、Cu~(2+)、Co~(2+)、Cd~(2+)、Ni~(2+)、Pb~(2+)、Hg~(2+) and Ag~+ picrates, have been carried out and their results are compared.

分别将十二个下沿含有杂环硫烷氧基杯芳烃衍生物和十五个上沿含有杂环硫乙酰胺基的杯芳烃衍生物与Na~+、K~+、Cs~+、Mg~(2+)、Cu~(2+)、Co~(2+)、Cd~(2+)、Ni~(2+)、Pb~(2+)、Hg~(2+)和Ag~+的十一种苦味酸盐进行了离子萃取实验，并对两类衍生物与不用金属离子的萃取能力进行了分析和比较。

Shear strength and fracture photograms of SnAgCu/Cu and SnAgCu/Au/Ni/Cu surface mounted soldered joint s stored at high temperature were investigated.

研究了SnAgCu/Cu及SnAgCu/Au/Ni/Cu表面贴装元件焊点在高温存贮试验条件下抗剪强度的变化规律。

Thermodynamic analysis show s that Fe-Cr-Ni alloys is not stable in SCWO conditions because Cr2O3 is not stable in these conditions.Formation of low melt po int metal chlorides may also be a reason for the high corrosion rates of the all oys.

热力学分析表明，Fe-Cr-Ni合金在高温氧化性介质中是不稳定的，并且低熔点金属氯化物的产生也可能是合金在超临界条件下出现高腐蚀速度的原因之一。

Thus, is more easily oxidated on Ni(111) surface than on Ag(111) suface.

因此，吸附在Ni(111)表面上的H2PO2-比吸附在Ag(111)表面上的H2PO2-更容易被氧化。

Ni-W alloy coating begins to be oxidated at 500℃, generates the ellipsoid oxidation film at 600℃.

Ni-W合金镀层在500℃时开始出现较明显的氧化。

It should be noted that not only in the complex perovskite like BaO3,(X=Mg, Zn, Co, Ni, Mn: Y=Nb, Ta) but also in the compounds with tungsten bronze structure such as Ba6-3xLn8+2XTi18O54, they are consisted of corner-sharing oxygen octahedra and the ratios of ion in B site to ion in A site are usually larger than one.

值得注意的是业已开发出来的材料不论是复合钙钛矿BaO_3，(X=Mg，Zn，Co，Ni，Mn；Y=Nb，Ta)还是钨青铜结构，它们都是由氧八面体共顶连接，而且氧八面体内、外阳离子比例都等于或略大于1，因此，我们推测在B位与A位阳离子比例略小于1的类钙钛矿结构中极有可能存在具有优良介电性能的新材料。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。