Conclusion the circulatory percolation process is better than the reflux process and maceration process for extraction of Radix Ginseng Rubra.
结论红参循环渗漉提取工艺优于回流及浸渍提取工艺。
This paper discussed percolation process of profile control by chemical water plugging and established perfect percolation theory which is applied to practice.
该文研究了化学剂堵水调剖的渗流过程，完善了渗流理论，并在实践中得到应用。
The effect of percolation during the sinking process is also considered, and the sinking depth and the negative pressure required are determined.
考虑了负压下沉过程中渗流的影响，确立了桶内土柱顶部所需压力与下沉深度之间的对应关系。
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