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Terms for subject Environment containing table | all forms | exact matches only
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danger tables火险计算表
fire danger tables火险计算表
water table Water that occupies pores, cavities, cracks and other spaces in the crustal rocks. It includes water precipitated from the atmosphere which has percolated through the soil, water that has risen from deep magmatic sources liberated during igneous activity and fossil water retained in sedimentary rocks since their formation. The presence of groundwater is necessary for virtually all weathering processes to operate. Phreatic water is synonymous with groundwater and is the most important source of any water supply地下水 (占据在孔隙、孔洞、裂缝和地壳岩石等空间的水。它包括从大气中沉淀下来通过土壤渗透的水,在岩浆活动期间从深岩浆源中上升所释放的水,和自形成以来保留在沉积岩的化石水。地下水的存在对于几乎所有的风化过程操作都是必要的。潜水是地下水的代名词,也是最重要的供水来源。)
water table protection Water table is inherently susceptible to contamination from landuse activities. Remediation is very expensive and often impractical. Prevention of contamination is therefore critical in effective groundwater management地下水保护 (地下水极易受到土地利用活动的污染。整治地下水是非常昂贵的,而且往往是不切实际的。因此防止污染在地下水的有效管理中很关键。)