| 摘要 |
1. A method of water recovery or ground water resources enrichment in porous media characterised in that liquid is introduced into a porous medium (3) through a shaft pipe (1) and at least one perforated pipe situated radially in a selected position (2, 2') mechanically connected to the shaft pipe (1), and around the perforated pipe (2, 2') a gravel filter (4) with the grain of required granulation is created.<IMAGE>
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