天气预报 > 其他 > 为什么充满氧气的集气瓶要正放
为什么充满氧气的集气瓶要正放
更新时间: 2020-09-19 00:00:00  

如果倒着放,因为是圆的,其容易滚动,从而损坏附件,造成泄漏,从而发生危险。氧气密度比空气密度大,倒着放会使一部分氧气溢出,使氧气浓度降低,同等条件下,氧气的密度大于空气的密度。有个简单的比较气体密度大小方法:同等条件下,相对分子质量大的气体密度大。

关键词: 为什么 充满 氧气 气瓶

为什么充满氧气的集气瓶要正放相关经验

天气预报

最新推荐

页面:/news/view-1936578/ | 耗时:0.0842 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=1936578 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1936578 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1936578 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1066888,1063309,1080529,1063213,1107809,1041729,1103386,1077074,1050843,1081687,1086530,1077523,1069729,1070534,1107028,1070796,1085995,1085842,1064861,997282,1085372,1089040,1097823,1058958,1079191,1109040,1072138,1071749,1074840,1107965) ORDER BY field (ArticleID,1066888,1063309,1080529,1063213,1107809,1041729,1103386,1077074,1050843,1081687,1086530,1077523,1069729,1070534,1107028,1070796,1085995,1085842,1064861,997282,1085372,1089040,1097823,1058958,1079191,1109040,1072138,1071749,1074840,1107965)