tnb meaning in Chinese
国能
三硝基苯
总氮
Examples
- Tnb water quality - determination of nitrogen - determination of bound nitrogen , following oxidation to nitrogen oxides
水质.氮的测定.根据氧化氮的氧化测定结合氮 - Note : n means test number ; tnb means total number born ; nba means number born alive ; sd means standard deviation
注： n为总记录数， tnb为平均总产仔数， nba为平均产活仔数， sd为标准差。 - Particle size distributing and the composing of crystal phase were discussed by the orthogonalizing design . the experiments showed that the most suitable process conditions should controlled as follows : process temperature was about 30c ; the ratio of tnb " water and solvent was l : 4 : l 0 : the calcined temperature was about 600 " c . such transition metal ions as fe3 +
实验表明，合适的反应条件是：以醋酸为负催化剂，水解温度应控制在30左右，钛酸丁酯与水量、溶剂量的配比应为1 ： 4 ： 10 。另外得到比较单一的锐钛型tio _ 2煅烧温度应控制在600左右。 - The nanoparticle titanium dioxide was prepared with tnb as raw material by the sol - gel process , the effects of the alcohol salt concentration the kind of solvent the water volume hydro1yze temperature . the dried ways of the wet gel and the calcined temperature of the dry gel on the specific surface area . particle size
本文以钛酸丁酯为前驱体，利用溶胶?凝胶法制备了纳米级的tio _ 2粉体材料，通过正交实验研究了醇盐的浓度、溶剂的种类、水含量、水解温度、干燥条件和煅烧温度等工艺条件对纳米粒子的比表面积、粒径大小及分布、晶相组成等性能的影响。