tetroxide

1. Optimization for synthesis process of lithium manganate from lithium carbonate and trimanganese tetroxide
   碳酸锂和四氧化三锰合成锰酸锂的工艺优化研究
2. The oxygen utilization rate is low in manganese tetroxide preparation by metallic manganese powder suspending liquid process.
   在金属锰粉悬浮液法制备四氧化三锰过程中存在氧气利用率较低的情况。
3. Evaluation of Uncertainty of Measurement for Determination of Equivalent Water Content in Nitrogen Tetroxide by NMR Method
   核磁共振法测定四氧化二氮中相当水含量测量不确定度评定熄灭含水量可燃物的含水量
4. Kinetics of manganese tetroxide preparation catalyzed by different acids
   不同酸催化下制备四氧化三锰的反应动力学
5. The influencing factors of uncertainty of measurement for determination of equivalent water content in nitrogen tetroxide by NMR method we established were discussed in this paper.
   讨论了自行建立的核磁共振法测定四氧化二氮中相当水含量测量不确定度的影响因素，并对各不确定度分量和测量结果的不确定度进行了评定。
6. Nitrogen tetroxide poisoning of rats with optic nerve changes in retinal morphology
   四氧化二氮中毒大鼠视神经视网膜形态的改变
7. A mineral consisting of manganese tetroxide; a source of manganese.
   一种由四氧化锰组成的矿物，是锰的来源。
8. The methods of preparing and measuring of trimanganese tetroxide are introduced in the paper.
   介绍了四氧化三锰的制备、检测方法及其相关理论研究。
9. NMRS Determination of Equivalent Water Content in Nitrogen Tetroxide
   核磁共振波谱法测定四氧化二氮中的相当水含量
10. Objective To investigate the protective effect and its mechanisms of N-acetylcysteine ( NAC) on acute lung injury ( ALI) caused by exposure to high concentration rocket liquid propellants asymmetrical dimethylhydrazine ( UDMH) and dinitrogen tetroxide ( N2O4).
    目的观察N-乙酰半胱氨酸（NAC）对大剂量火箭液体推进剂偏二甲基肼（UDMH）和四氧化二氮（N2O4）吸入性急性肺损伤（ALI）的保护性作用。
11. To solve this problem, several methods have been introduced for the recovery and reuse of the ligands and osmium tetroxide.
    为了解决这一问题，国外有关研究小组探索了多种回收手性配体的方法，近期还报道了一些回收四氧化锇方面的工作。
12. The design and structure of nitrogen tetroxide concentration monitor are introduced.
    介绍了四氧化二氮毒气浓度监测仪的设计思路和组成结构。
13. Osmium tetroxide is an expensive reagent with great toxicity.
    四氧化锇是一种贵而毒性大的试剂。
14. Research on Analyze Technique of Water Equivalent of Nitrogen Tetroxide
    四氧化二氮相当水化验方法探讨
15. A staining method with allylamine and Osmium tetroxide for the analysis of crystalline polymer PET and PBT is presented in this paper.
    本文介绍一种用于提高结晶高聚物PET和PBT电子显微图象衬度的丙烯胺四氧化锇染色方法。通过列举的照片，可以直接观察到结晶PET和PBT的两相结构晶区和无定形区。
16. Study on improving the determination method of nitrogen tetroxide in red fuming nitric acid
    红烟硝酸中四氧化二氮含量测定方法改进研究
17. This study is significant for enhancing the quality control of the nitrogen tetroxide on launch site.
    该课题的研究对于提高发射场四氧化二氮质量控制水平具有十分重要的意义。
18. Nitrogen tetroxide intoxicated group.
    四氧化二氮（N2O4）组；
19. Nitrogen tetroxide and nitrogen tetroxide that contained certain proportional nitrogen oxide are the important rocket propellants, and the equivalent water content is one of the most important technique index.
    四氧化二氮和加入一定比例一氧化氮的四氧化二氮是非常重要的火箭推进剂，相当水含量是其最重要的一项技术指标。
20. Conclusions The lung tissue of mice intoxicated by nitrogen tetroxide shows fibrosis. TGF-β 1 and HSP-70 may play important role in the course of lung fibrosis.
    结论N2O4中毒小鼠肺组织可出现纤维化，TGF-β1和HSP-70在肺纤维化的发生发展过程中可能扮演着重要角色。
21. The testing and analysis of the saturated vapor pressure of dinitrogen tetroxide colloid
    四氧化二氮胶体的饱和蒸气压测试及分析
22. Discussion of Increase Product of Nitrogen Tetroxide
    提高四氧化二氮生产能力的探讨
23. Development of Nitrogen Tetroxide Concentration Monitor
    四氧化二氮毒气浓度监测仪的研制
24. A study on long term compatibility of the nitrogen tetroxide with the satellite tankage materials
    四氧化二氮与卫星贮箱材料的长期相容性研究
25. The chiral catalysts employed in the AD reactions are complexes of osmium tetroxide with chiral ligands.
    该反应所用的催化剂是由四氧化锇与手性配体配位形成的。
26. Analysis methods to determine equivalent water content in nitrogen tetroxide
    四氧化二氮中相当水含量的分析检测方法
27. Here we introduced the successful application of catalytic amount of osmium tetroxide in the oxidation of alkenes with good stereoselectivity. This provides a new route for osmium tetroxide in its application in organic synthesis.
    本文介绍催化剂量的四氧化锇在立体选择性高的烯烃氧化反应中的应用，为四氧化锇在有机合成中的应用，开辟了新的途径。
28. In order to solve the problems caused by the water equivalent of nitrogen tetroxide overproof happened on launch site, three test methods ( near infrared, microwave and chromatography ( CG)) are analyzed theoretically and experimentally.
    针对发射场多次出现的四氧化二氮相当水含量超标问题，对近红外法、微波法及色谱法等3种化验方法进行了理论分析与实验研究。
29. Some key points are resolved with advanced software design conception and technology, and a nitrogen tetroxide concentration monitor with sound and light alarm is developed.
    通过采用先进的软件设计思想与技术，解决了几个关键问题，成功地研制出了具有声光报警功能的高性能四氧化二氮毒气浓度监测仪。
30. Neuropathological examination: the HE staining, immunohistochemistry, osmium tetroxide acid staining. Results: 1.
    神经病理检查：采用HE染色，免疫组化，锇酸染色观察神经病变。

noun

1. an oxide containing four atoms of oxygen in the molecule