abbr.Narrow-Band 窄（频）带
1. NB
1. 铌：-如果过滤器上有样品残留物,必须使用恰当的方法(如X射线嫩光谱仪(EDXRF))检测以 便确定其不含目标元素 b)含有锆(Zr),铪(Hf),钛(Ti),铜(Cu),银(Ag),钽(Ta),铌(Nb)或钨(W) 的材料的消解 -称出大约1g的样品放入干净的干燥的反应容器中,
2. 巴西标准：ABNT的主要业务是研究制定巴西标准(NB),开展产品质量认证及其他与标准化相关的活动,代表国家参与国际,区域标准化活动. ABNT于1947年加人国际标准化组织(ISO),还是国际电工委员会(IEC)、泛美标准委员会(COPANT)、南锥体共同市场标准化协会(AMN)的成员团体. [第一段]
3. NB
3. nb：nave bayesian; 朴素贝叶斯
4. NB什么意思
4. nb：nitrogenous balance; 氮平衡
5. nb：narrow-band; 窄带
6. nb：nature background; 自然背景
1. As for fine-grained Ta-Nb mineral, the flotation is generally adopted, and effective collectors is fatty acids, arsenic acids, phosphonic acids, hydroximic acids and cationics.
对细粒钽铌矿，一般采用浮选，其中比较有效的捕收剂有脂肪酸类、胂酸类、膦酸类、羟肟酸类和阳离子型捕收剂。
2. NB的意思
2. A perpendicular magnetic recording disk has an improved recording layer of a granular CoPtCr-based ferromagnetic alloy with inter-granular material made up of one or more oxides of Cr and one or more oxides of one or more of a segregant of Si, Ta, Ti, B, Nb or Hf, wherein the amount of oxygen present in the recording layer is greater than about 22 atomic percent and less than about 35 atomic percent.
本发明提供一种垂直磁记录盘，其具有改进的具有颗粒间材料的颗粒CoPtCr基铁磁合金的记录层，颗粒间材料由Cr的一种或更多氧化物及Si、Ta、Ti、B、Nb或Hf分离子中的一种或更多种的一种或更多种氧化物构成，其中记录层中出现的氧的量大于约22个原子百分比并且小于约35个原子百分比。
3. As the result of Nb precipitation, the hot ductility of the steel was significantly reduced in the lower temperature region of γ single phase.
由于含Nb钢试样共折转变的推迟，与不含Nb钢相比，其第Ⅲ脆性温度域向低温延伸。
4. NB在线翻译
4. When the temperature was lowered to 900℃, the precipitation content of Nb reached maximum and fine Nb precipitates were found both along γ grain boundaries and inside the grains with mean particle size of 5-8 nm and interparticle spacing of about 30 nm.
在温度降至1100℃以下的变形试样中Nb开始由γ晶中析出，1000-950℃之间析出的Nb较粗大并在钢中零散分布；温度降至900℃左右时，大量微细的Nb在γ晶界和晶粒内析出，尺寸平均为5-8nm，间距在30nm左右，造成了γ相区低温域合Nb钢延塑性的急剧减少；温度降至800℃时，先共折铁素体开始在γ晶界析出，钢的延塑性继续降低。
5. danci.edu.pub
5. Small a honeycomb-like thing base station NB420 bulk small, capacity is high, belong to compact model product, its are had cover an area of small, application the characteristic with agile, practical economy, held grand a honeycomb-like thing at the same time base all advantages of the station, apply to low cost to build a network especially.
微蜂窝基站NB420体积小、容量高，属于紧凑型产品，其具备占地小、应用灵活、经济实用的特征，同时保持了宏蜂窝基站的所有优点，尤其适用于低成本建网。
6. Shandong have nothing to NB, but the two imperial Sanhuangwudi in Shandong!
山东没什么可NB的，只是三皇五帝的二皇都在山东而已！
7. NB在线翻译
7. Du l/NB*F 5） He assured his property with this company.
他向这家公司保了财产险。
8. The main inclusion phases in the core of Nb-Ti superconducting composites extruded under two different temperatures (600-650℃ and 500℃), are first extracted by chemical treatment and then identified by x-say diffraction method: traces of Cu, NbC and even less of TiC are found present in the core of composites, but β''-Cu3Ti only present in the superficial layes of the core after higher temperature extsrsion (600-650℃).
采用化学相分离法可分离出实用的超导Nb-Ti复合线芯线中的主要夹杂相，经X射线衍射分析发现在600—650℃和500℃挤压温度制得的芯线中，均存在微量Cu，NbC和更少量的TiC夹杂相。600—650℃挤压芯线的表层还存在β''-Cu_3Ti化合物。
9. 5KJ/molK, respectively. Fracture toughness of Ti〓Al-Nb/Ti〓Si〓 alloy is greatly improved after hot-rolling and the result of J-resistance curve calculation is similar to that of the experimental data of Ti〓Al-Nb alloy.
Nb或Si元素加入Ti〓Al合金后，显著提高Ti〓Al合金的高温抗氧化性，同时加Si、Nb则效果更好。
10. Crystalline cubic Nb3Si is observed to be the firstphase formed only during deposition at 200℃, while the amorphous silicide is formed inthe sample deposited at room temperature.
首次发现在200℃沉积温度条件下晶态Nb3Si相作为第一晶态形核相出现，而在室温下沉积的Nb/Si多层膜中在界面处形成的是非晶硅化物相。
11. NB的解释
11. Nb s p; Thu s the invention of s ampler s.
因此，采样器的发明。
12. NB的解释
12. NB: The rise and progress of arts and sciences and such civil liberty under a constitution.
艺术和知识的兴起繁荣，和在这宪政体制下的政治自由，因此而有。
13. Niobium oxalate, manganese nitrate and n-ethyl silicate were coated on hydrothermally-synthesized barium titanate powders by a heterogeneous nucleation surface deposition method, leading to the homogeneous mixing of Nb2O5, MnO2, SiO2 and BT powders.
采用非均匀形核表面淀积法，在水热钛酸钡纳米晶粉体表面包覆Nb、Si、Mn，实现了Nb、Si、Mn与钛酸钡粉体的均匀混合。研究了掺杂量和烧结制度对PTC陶瓷性能的影响。
14. 911查询·英语单词
14. I dont give a fuck what it is.....
别他妈的跟我们NB。。。。。。
15. The study on the compression test of β forged Ti-24Al-14Nb-3V-0.5Mo alloy shows that the strain rate sensitivity, m, of the alloy is larger than 0.3 and the true strain reaches 2.0 without cracking at 980℃ and 2×10〓s〓, indicating that β forged Ti〓A1-based alloy has a good superplasticity during compression process. This result provides a basis for superplastic forging and superplastic extrusion.
本文在简化Ti-A1系金属间化合物的超塑预处理工艺、拓宽超塑变形条件、研究合金超塑变形过程中的组织演变和探索超塑变形机制等方面取得了下列研究成果：对β锻造态的Ti-24Al-14Nb-3V-0.5Mo合金进行压缩试验的结果表明：在980℃、2×10〓s〓的条件下，合金的应变速率敏感性指数m值大于0.3，真应变大于2.0时试样表面未出现裂纹，说明仅经开坯锻造的Ti〓A1基合金在压缩时具有很高的超塑变形能力，超塑预处理工艺可大大简化，此结果为体积超塑成形如超塑锻造和超塑挤压提供了理论依据。
16. Objective To investigate the mechanisms of oridonin inducing apoptosis on acute leukeamia NB4 cells and its mechanism.
目的 探讨冬凌草甲素对白血病NB4细胞的诱导凋亡作用及其机制。
17. NB什么意思
17. Ta, Mo, W, Ti, Nb, the refractory impurity elements, in RE metals are dissolved thoroughly with the addition of fluoric acid, and then determined by ICP-MS.
在稀土金属的冶炼过程中，常用到一些由难熔金属制成的冶炼容器，这样极易引入相应的难熔金属杂质，如Ta、Mo、W、Ti、Nb等。
18. NB是什么意思
18. Shandong have nothing to NB, but there was a 7-year-old to know so that the pear Kong Rong!
山东没什么可NB的，只是有个7岁就知道让梨的孔融而已！
19. The cross sections are 2.47 nb for the thick target and 4.36 nb for thin the target.
低能薄靶的测量结果，至今没有在公开发表的文章中见到。
20. In the calcination of precursors, there is always a certain amount of Mg-rich magnesium niobate, i.
分析表明，在前驱体的煅烧反应过程中，总是有一定量的相对富Mg的Mg〓Nb〓0〓作为主相MgNb〓O〓的伴生产物而出现。
1. 注意，留心(用于提醒注意所说或所写内容)
You write NB to draw someone''s attention to what you are about to say or write.
e.g. NB The opinions stated in this essay do not necessarily represent those of the Church of God Missionary Society.
请注意:文中所述观点并不代表传教会的立场。