Authentic Christianity is not sophisticated but simple. R.T. 真正的基督教信仰不是高深莫测,而是简单易懂。
From the thermodynamics analysis, BN fiber will suffer oxidation just at room temperature ( R.T.) in dry air or oxygen. The kinetics shows that the essence of oxidation is the gas ( O2)/ solid ( BN) diffusion and surface chemical reactions. 热力学上,BN纤维在常温下、干燥的空气或氧气中就会发生氧化作用;动力学上,其氧化在本质上是属于气(O2)/固(BN)扩散以及表面化学反应。
The influence of solvent, reactive temperature, catalyst loading and etc on the reactive activity and selectivity were investigated systematically and resulted in the optimal reaction conditions that reactive temperature was r.t., THF as solvent and 20% catalyst loading was used. 系统考察了溶剂、反应温度、催化剂量等因素对反应活性和选择性的影响,结果表明该催化体系的最佳反应条件为:室温、四氢呋喃作溶剂、20mol%催化剂量。