| 词汇 | leaching |
| 释义 | leaching present participle ofleach leach verb[ T ] environment specializeduk /liːtʃ/ us /liːtʃ/ [ I or T ] When a chemical substance leaches or is leached from a material, especially soil, it is removed by the action of water passing through the material: 漂洗，过滤（尤指土壤） The calcium, potassium, and magnesium ions are leached or washed out of the top soil into lower inaccessible subsoil.钙、钾和镁离子被滤出表层土壤流入低层土壤却无法被吸收。 [ T ] When soil, etc. has been leached, it has had chemical substances removed from it: （指土壤等）被漂洗，被过滤 The soil has been so heavily leached through intensive farming that it is no longer fertile.过度耕作使养分大量流失导致土地贫瘠。 Removing and getting rid of things abandonment banish be scattered to the four windsidiom bin cast someone/something aside/away/off dumping eradication eradication of something erase erasure evacuate evacuate someone from something scrape shed shedding shoo shrug shrug something off sling turf You can also find related words, phrases, and synonyms in the topics: Physical & chemical processes Removing and extracting Examples of leachingleaching In English, many past and present participles of verbs can be used as adjectives. Some of these examples may show the adjective use. The lowest maize yield harvested in 1996/97 under sole maize was attributed to leaching and water logging due to excessive rainfall and lodging. In both experiments, cumulative mean cation losses between treatments across all leachings were compared graphically. In order to verify the relevance of these hypotheses, measurements of the leaching rates over short (days) and long (weeks) periods should be carried out. Radiolarians were extracted in the laboratory by hydrofluoric acid leaching. Data were summarized as mean cumulative cation losses from leaching columns of each treatment after each leaching event. The use of saline drainage water for irrigation creates soil salinity due to the accumulation of soluble salts in the absence of adequate leaching. In fields with low erosion rates, there is little increase in leaching. This was attributed to leaching losses on sandy soils with high rainfall. The relevance of these results to actual leaching losses in the field is not known. N losses are henceforth considered to be equivalent to actual leaching and may also be termed 'emissions'. Leaching accumulation and release of nitrogen in decomposing forest litter. In either case the toxic or radioactive waste is trapped in the solid, preventing it from leaching into the local water table. These species would be able to survive high salinity and germinate when the salinity of the sediments decreases through dilution or leaching of salts. In the growth experiment, ligand production would be indicated by enhanced metal leaching in the biotic component as compared to the abiotic control. The comparison of nitrogen use and leaching in sole cropped versus intercropped pea and barley. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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