| impermeable |
Characteristic of geologic materials that limit their ability to transmit significant quantities of water under the head differences normally found in the subsurface environment.
출처: www.plenvironment.com/pages/glossary.htm
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| impermeable |
Not allowing water to pass through it. Because beds of clays and other fine sediments are nearly impermeable, they act as confining layers and impede the spread of contaminated groundwater.
출처: dnr.state.il.us/orep/inrin/eq/well/gloss.htm
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