For the route of selective separation and enrichment with sodium oxide, it is very difficult for one-step route to produce quite pure enriched slag.
对于钠系选择性分离富集路线，采用一步调渣法路线难以取得较高纯度的富钛渣。
2
The problem of complicated physicochemical and aerodynamic process is simplified to one of two-dimensional forward-facing step of quasi-steady state ablation problem of the separation region.
本文将这一复杂的物理化学和气体动力学过程简化为二维前向台阶分离区的准定常烧蚀问题来处理。
3
The thermoplastic polyurethane (TPU) is prepared with mixer by one-step, and it's micro-phase separation is studied by atomic force microscope (AFM).