查询词典 ni

However, when occurring in Mesozoic remelted granite, pyrite is featured mainly by high gold content in pentagonal dodecahedron and in its complex; low content in cubic pyrite; Au/Ag ratio between 1-2; both N and P types of pyrite present in most deposits and P type only in a few deposits.

产于中生代重熔花岗岩中时，黄铁矿以五角十二面体居多，五角十二面体及其聚形含金较高，立方体含金性较差；Au/Ag比值在1-2之间，As的含量较高(＞600×10〓)；Co、Ni的含量则较低，一般为10n×10〓；热电性以既有P型又有N型的P、N混合型为特征，少数金矿床表现为单一的P型。

By using of positron lifetime and coincidence Doppler broadening measurements. Only single-component lifetimes have been measured.

符合多普勒展宽测量从实验上直接给出了B2-NiAl合金中只存在一种亚晶格空位缺陷-Ni单空位。

In present work, the coincidence Doppler broadening spectra of positron annihilation radiation of NiTi, NiAl alloys, single crystal of Si, and pure metals, such as Fe, Co, Al, Nb, Cu, Ni, Ti have been measured.

利用正电子寿命谱参数研究了NiTi合金马氏体转变及其奥氏体转变过程中的微观缺陷和电子密度的变化，从而揭示NiTi合金马氏体转变的微观机制。

By use of some atom parameters in optical-field-ionized plasmas obtained from the extended Cowan program based on Maxwell to suit any electron distribution with the help of additional program, the peak gain coefficient of Ni-like Kr system is calculated for the ion densities of 1×10 17 cm -3 and 3.2×10 17 cm -3 respectively after considering Doppler broadening and natural broadening.

利用自行编制的辅助程序将原来仅以麦克斯韦分布为基础的Cowan程序推广到适用于任意电子能量分布情形下获得的光场感生电离等离子中的一些原子参数，在考虑多普勒加宽和自然加宽，对离子数密度分别为1×1017cm-3和3.2×1017cm-3的情况下的类镍氪系统的增益系数进行了估算，理论上的峰值增益系数为14cm-1、141cm-1。

The analyses of orbital interaction based on energy bands and DOSs indicate that there is obvious covalent interaction between Ni-O.

能量计算表明，NiO(001)面表面能小，比较稳定；NiO(111)面则表面能大，不稳定，与实验结果一致。

Bloyce A, Dong H. Comparative evaluation of treatment for wear protection of Ti-6Al-5V. In:Proc 8th Word conf On Titanium, Birmingham, 19953 Fisher J, Dowson D. Tribology of total artificail jionts. Proc Instn Mech Engers, 1991; 205H:73

2化学镀Ni-P-PTFE复合层具有优异的耐磨性和减摩性，大大改善了Ti-6Al-4V摩擦磨损性能，使Ti-6Al-4V应用于在人工关节以及其它磨损较大的部位成为功效可能。

PaO2, PaCO2, pH, saturation were measured and dyspnoea was estimated before and eery 30 min of entilation.

心源性肺水肿造成的急性呼吸衰竭是NI的适应症。

Pierre Eckert, a Swiss climate change expert, said: The correlation between La Ni?a and China is certainly possible.

瑞士气候变化专家皮埃尔·埃克特表示：拉尼娜现象与中国近期天气之间存在关联当然是有可能的。

Keywords Ni base single-crystal superalloy;X-ray diffraction;stress;elastic constant;four point bending test

镍基单晶高温合金； X射线衍射；应力；弹性常数；四点弯曲

Elding on metal base of anti-acid stainless steel.A 5kW laser with CO2 flow transverse was used for cladding Co-base alloy or Ni-base alloy powder replaced on the base metal.

使用5kW横流CO2激光器对预置于基体上的Co基自熔合金粉末进行单道或多道扫描。

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％。