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V2 |
| examine in order to test suitability | |||
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V1 |
| permeate or penetrate gradually | |||
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| the process whereby fluids pass through a filter or a filtering medium | |||
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V2 |
| cause (a liquid) to leach or percolate | |||
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| the filtration of a liquid for extraction or purification | |||
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| the slow passage of a liquid through a filtering medium |