Nitrate and water-soluble organic nitrogen were migrated with deionised water migrating and increased subsoil fertility.

硝酸盐和水溶性有机氮随着去离子水的迁移而迁移，并增加了土壤的肥力。

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An attempt had been made to dig a tank in the garden, but the subsoil water proving too low, it had been abandoned, unfinished, with the excavated earth left piled up into a hillock.

我们曾尝试在花园里挖一个水池，但因地下水太过浅，只好放弃，没能完工，挖出来的土堆成了一个小山包。

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Nitrate and water soluble organic nitrogen were migrated with deionised water migrating and increased subsoil fertility.

硝态氮和水溶性有机氮随灌溉水向下迁移，对底土具有培肥作用。

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This wastewater is either discharged directly into open water bodies or leaches into the subsoil.

UNESCO: Water resources in the Asia-Pacific region are increasingly threatened by pollution and vulnerable to natural disasters. | United Nations Educational, Scientific and Cultural Organization