查询词典 ni

The grain size of the material prepared by dopping Sr in the position "A" or dopping Co or Ni in the position "B" of the La_4BaCu_5O_13＋δ is small but it becomes bigger by dopping Ce in the position "A" of the La_4BaCu_5O_13＋δ.

SEM测试表明材料的粒径随着温度的升高而迅速增大，但颗粒的分布比较均匀。A位掺Sr和B位掺Co和Ni时合成的材料的粒径较细小，而A位掺Ce时合成材料的颗粒较大，这与BET测试和孔径分布测试相一致。

The result of X-ray diffraction analysis showed that Ni-Fe-Cr alloy is characterized by face-centered cubic crystal structure.

Ni–Fe–Cr合金的电沉积研究也被广大学者所关注[1-11]，通常是以铜作为研究基体。

The structure formed is FeNi〓and γ after diffusion. Owing to diffusion, the Ni distribution across the layer is gradient after heat-treatment at 600℃ for 1h.

扩散后形成了FeNi〓相以及γ相，镀层经600℃×1h的热处理后，由于扩散的影响，在镀层内部Ni含量呈现梯度分布。

Based on the calculation of the energies for Fe〓Ni, FeNi and FeNi〓 three ordered structures, it can be predicted that FeNi〓 is the most stable phase.

对Fe〓Ni、FeNi和FeNi〓有序相的能量计算表明，FeNi〓有序相最稳定。

Centrifugall separation self-propagating high-temperature synthesis is apphed to prepare a new type of Fe-Cr-Ni-Al2O3 intermetallic compound ceramic-lined composite pipe with FeNi alloy transition layer.

采用离心分离自蔓延技术，制备出了一种新型的具有FeNi舍金过渡层的Fe-Cr-Ni-Al2O3金属间化合物梯度复舍管。

Now,three kinds of alloys were studied and applied:Cr-former alloy,Ni-based alloy and the ferritic steel.

目前研究和使用的合金有三种：Cr基合金、Ni基合金和铁素体不锈钢。

"We are proud to be among Electronic Design's Top 100 Employers in Electronic Design because it acknowledges our commitment to our corporate culture," said Mark Finger, NI vice president of human resources.

NI人力资源副总裁Mark Finger说：我们非常高兴能成为Electronic Design评选活动中的前100个中的1个，他认可我们的公司文化，对我们的付出给予了肯定。

"It is an honor to be selected as one of FORTUNE's 100 Best Companies to Work For for nine consecutive years," said Mark Finger, NI vice president of human resources. A key to our successful corporate culture over so many years has been our employees' commitment to both our work culture and the communities we live in.

NI人力资源副总裁Mark Finger说：非常荣幸能连续九年获此殊荣，我们成功企业文化的关键是许多年来我们不仅在打造我们的工作文化还在创建我们的生活环境。

The flow-field around a hemisphere and a flat-nosed cylinder in the shock tube is simulated numerically by using non-equilibrium Navier-Stokes equations with an air chemical model of 5 species 17 reactions, and the catalytic rate constant of surface materials such as Pt, SIC:, Ni and a flight vehicle materials is determined by using the heat transfer rate of testing in the shock tube and the distribution of heat transfer rate along with the catalytic rate constants.

用5组分17个化学反应Durm-Kang空气化学模型和轴对称热化学非平衡Navier-Stokes方程，对激波管中球头和平头圆柱模型绕流流场进行了数值模拟，给出了驻点热流随催化速率常数变化的分布，并根据激波管实验测量的热流值确定了表面材料Pt、SiO2、Ni和某种飞船材料的催化速率常数，建立了数值分析高焓流动边界层催化特性的软件。

Meanwhile, metal powders of Cu and Pb decrease the friction coefficient of PTFE composites, but Ni powder increases the friction coefficient.

金属填料Cu及Pb降低了PTFE复合材料的摩擦系数，Ni则增大了复合材料的摩擦系数；Cu的减磨效果最好，而Pb的减磨效果则最差。

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％。