天气预报 > 其他 > 玻璃吸盘怎么吸的牢固
玻璃吸盘怎么吸的牢固
更新时间: 2020-11-03 00:00:00  

吸盘吸在玻璃上用力挤压即可吸的牢固,因为吸盘在挤压排出了大量空气,这样吸盘内的气压是小于外界大气压的,这样外界大气压就可以将吸盘压在玻璃上了。吸盘使用一段时间会掉下来是因为吸盘的表面不是绝对平整的,这样空气就会进入吸盘内,当吸盘内外的大气压都相等时,吸盘就会掉下来。

关键词: 玻璃 吸盘 怎么 牢固

玻璃吸盘怎么吸的牢固相关经验

天气预报

最新推荐

页面:/news/view-874026/ | 耗时:0.2364 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=874026 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=874026 LIMIT 0,1
select * from tbl_Articles_sphinx where id=874026 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1067795,1084047,1070058,1091908,1087439,1068118,1118362,1053144,1127761,1070478,1048968,1086902,1083952,1082201,1068576,1063517,1132605,1072561,1077818,1041343,1085842,1067265,1119490,1079219,1073915,1085372,1079978,1070963,1080649,1057656) ORDER BY field (ArticleID,1067795,1084047,1070058,1091908,1087439,1068118,1118362,1053144,1127761,1070478,1048968,1086902,1083952,1082201,1068576,1063517,1132605,1072561,1077818,1041343,1085842,1067265,1119490,1079219,1073915,1085372,1079978,1070963,1080649,1057656)