LCO promoter having proper acid sites and stable medium pore distributions by adopting the pore improving method was developed for heavy oil catalytic cracking.
采用添加孔改进剂的方法，开发了具有适当的酸中心分布、稳定的中孔分布的多产柴油重油裂化助剂。
2
In this paper, binding energy spectra and orbital momentum distributions of the four most stable conformers of Proline are investigated.
本文主要讨论了脯氨酸分子最稳定的四种构象的束缚能谱和轨道电子动量分布。
3
This is because in fat-tailed distributions, the mean is affected by outliers and therefore one needs many years of data to arrive at a stable estimate.