查询词典 NI

Interatomic potentials of the embedded atom type and molecular dynamics simulation are used to calculate the surface energies of the high--index surfaces containing the [001] or [-110] zone axis in Al, Cu and Ni.

利用嵌入原子型原子间相互作用势的分子动力学，计算了金属Al， Cu， Ni位于两个晶带上([001]晶带和[-110]晶带)一系列高Miller指数面的表面能。

The effect of rare earth metal yttrium on the microstructure, chemical composition, hardness, and wear resistance of vacuum fusion sintered Ni-based coatings was studied.

研究了稀土金属Y对真空熔结Ni基合金涂层显微组织及化学组成、硬度和耐磨性的影响。

However, because S is more easily combined with Fe than As does, hence when hydrothermal fluids are rich in S, the possibility of As presence in pyrite crystal lattice decreased, but the chance for Co and Ni to substitute Fe in pyrite crystal lattice increased, thus S rich is not favorable for the formation of P type of pyrite.

但另一方面，由于S与As相比更易与Fe结合，因而成矿介质中富S将使As进入黄铁矿晶格中的能力或几率降低，并进一步使Co、Ni因补偿类质同像进入黄铁矿晶格中代替Fe的能力或几率增大，反而不利于形成P型黄铁矿。

Which use laser welding with a powder, a kind of heat treatment, and do not use another kind of heat treatment; plasma surfacing using two different surfacing powder, respectively, and Ni-Fe-based, heat after heat treatment.

其中激光采用同一种堆焊粉末，一种进行热处理，另一种不采用热处理；等离子堆焊采用两种不同的堆焊粉末，分别为Ni基和Fe基，都进行热后热处理。

Compared with Ni-Ti alloys, Cu-based alloys have such advantages as the wide sources of raw materials, simple preparation technology, low cost, wide range of transformation temperature, good electric conduction and so on.

与Ni-Ti合金相比，铜基合金具有相变温度可调范围宽，导电性能好，加工性能良好，原料来源广泛，生产工艺简单，成本低廉等优点，一直是人们研究的重点。

The internal friction in an 18-8-3-1 Cr-Ni--Mo-Ti heat-resisting steel was measuredwith a torsion pendulum, and an internal friction peak around 520℃ was observed.

用低频扭摆测量了18-8-3-1 Cr-Ni-Mo-Ti耐热钢的内耗，在520℃附近观察到一个内耗峰。

A series of amorphous Ni-Sn-B/SiO 2 catalysts with different tin contents were prepared by salt impregnation and KBH 4 reduction.

采用化学还原法制备了一系列三元非晶态Ni Sn B/SiO2 催化剂，并考察了Sn含量对催化剂的苯乙酮选择加氢制备苯乙醇反应的活性及选择性的影响，同时对Sn改性前后的催化剂进行了系统的表征。

The content of the heavy metal element: Cd, Cr, Cu, Fe, Mn, Ni, Pb, Ti and Zn in tree rings in both two growth backgrounds: major urban road system and campus in Nanjing were examined and analyzed.

方法］对南京市区主要城市干道行道树和作为对照组的南京林业大学校园内的雪松、法国梧桐和水杉3个对应树种树木年轮重金属元素Cd、Cr、Cu、Fe、Mn、Ni、Pb、Ti、Zn含量进行了测试和对比分析。

In this study, several electrolytes based on Watts bath have been measured by comparing electrochemical polarization and throwing power, and the morphology of Ni deposit has also been analyzed.

本文通过测量极化和分散能力，对以Watts型电镀镍溶液为基础的几种溶液进行了研究，并对Ni沉积层形貌进行了分析。

The relation between the resistivity and the surface roughness about Ni-Al films is studied.

研究了在纳米厚度范围内，Ni-Al薄膜的电阻率与表面粗糙度的关系。

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％。