The vacuum membrane distillation for motherwort extract is tested and the temperature polarization and concentration polarization are analyzed.
本文研究了影响益母草真空膜蒸馏过程的基本影响因素，并分析了浓差极化和温差极化问题。
2
The study on the newly developing membrane separation technology - vacuum membrane distillation is carried out with experimental and theoretical research work in this paper.
本论文对新型的膜分离技术—减压膜蒸馏技术进行了全面的实验研究和理论研究。
3
The process flow sheet of vacuumdistillation of Bi-Ag-Zn crust was drawn up, and its rationality was argued.