n. percolation ; leaching
沥滤从……中洗去或滤去可溶性物质收藏。
淋溶土系中等程度沥滤，本身肥力较高的森林土壤。
Alfisols are moderately leached forest soils that have relatively high native fertility.
粪污处理系统由固液分离机、化粪池和沥滤场组成。
The waste management system is comprised of a solid waste separator, septic tank and drain field.
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