The measurement equation for multi position error separation technique is put forward, and the equation is universal for all the current multi step and multi point methods.
提出了多位法误差分离技术读数方程，可统一现行的多步法和多点法。
The application effect of multi-step extractive separation was researched by hollow fiber membrane.
使用中空纤维膜研究其多级萃取分离应用效果。
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