天气预报 > 其他 > 为什么修正液中要放铁块
为什么修正液中要放铁块
更新时间: 2020-10-09 00:00:00  

修正液由白色固体和易挥发有机溶剂组成,典型的是钛白粉和甲基环己烷。使用时涂在待修改处,甲基环己烷挥发后剩下白色固体。

如果修正液放置时间过长,表面就会会凝结成一张膜,而瓶子里的空间会充满着溶剂挥发出来形成的气体。使用前摇动瓶子,里面的金属珠或金属块可以打破凝结的膜,使它再度溶解到下面的液体中,以便均匀的涂改。

关键词: 为什么 修正

为什么修正液中要放铁块相关经验

天气预报

最新推荐

页面:/news/view-2660229/ | 耗时:0.9656 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=2660229 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2660229 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2660229 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2708448,153725,1127311,2260967,1066170,1097767,1482536,3023089,1465035,1080811,1127747,1111096,1087313,1130444,1104723,226177,1117686,1015145,1130708,1916356,1275742,1097583,2984167,243359,1098569,2079582,1118056,1054981,1052349,1093993) ORDER BY field (ArticleID,2708448,153725,1127311,2260967,1066170,1097767,1482536,3023089,1465035,1080811,1127747,1111096,1087313,1130444,1104723,226177,1117686,1015145,1130708,1916356,1275742,1097583,2984167,243359,1098569,2079582,1118056,1054981,1052349,1093993)