| 单词 | percolation |
| 释义 | percolation /perr'keuh lay"sheuhn/, n. 1. the act or state of percolating or of being percolated. 2. Pharm. the extraction of the soluble principles of a crude drug by the passage of a suitable liquid through it. 3. Geol. the slow movement of water through the pores in soil or permeable rock. [1605-15; < L percolation- (s. of percolatio). See PERCOLATE, -ION] |
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