天气预报 > 其他 > 潜水层一般深度为多少
潜水层一般深度为多少
更新时间: 2020-06-30 00:00:00  

十五米至三十米。

潜水层是地表以下第一个稳定水层。潜水层有自由水面。潜水层以上没有连续的隔水层,不承压或仅局部承压。降水和地表水通过包气带下渗补给。潜水层是重要的供水水源,通常埋藏较浅,分布较广,开采方便。但易受污染,应注意保护。

关键词: 潜水 一般 深度 多少

潜水层一般深度为多少相关经验

天气预报

最新推荐

页面:/news/view-1530158/ | 耗时:0.3336 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1530158 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1530158 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1530158 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2005460,1446577,2303786,812327,2325515,3148103,695336,1115463,2084782,1041954,1889027,2044781,2052695,1882381,1968492,351976,2376002,1481460,1106663,2981192,3177534,2487239,1482241,2201498,3029818,2125153,1112676,3338021,3023920,1121252) ORDER BY field (ArticleID,2005460,1446577,2303786,812327,2325515,3148103,695336,1115463,2084782,1041954,1889027,2044781,2052695,1882381,1968492,351976,2376002,1481460,1106663,2981192,3177534,2487239,1482241,2201498,3029818,2125153,1112676,3338021,3023920,1121252)