天气预报15天查询> 其他> 为什么产生雾霾

为什么产生雾霾

更新时间: 2020-11-06 00:00:00     

产生雾霾主要是空气中悬浮的大量微粒和气象条件共同作用的结果。城市里大楼越建越高,阻挡和摩擦作用使风流经城区时明显减弱。静风现象增多,不利于大气中悬浮微粒的扩散稀释,容易在城区和近郊区周边积累。

关键词: 为什么 产生

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1704451/ | 耗时:0.7389 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1704451 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1704451 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1704451 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(108064,2076584,219828,1123883,121478,1097773,1102672,263108,1102328,110002,2112803,1854547,1083059,110546,108363,738928,115155,1555257,3020098,1132777,2706686,1068824,506015,107930,209729,1466166,1100741,1799198,3166718,123531) ORDER BY field (ArticleID,108064,2076584,219828,1123883,121478,1097773,1102672,263108,1102328,110002,2112803,1854547,1083059,110546,108363,738928,115155,1555257,3020098,1132777,2706686,1068824,506015,107930,209729,1466166,1100741,1799198,3166718,123531)