笔上的橡胶套发生了什麽反应?现在很多笔上都有橡胶套,用久了它的颜色就会变深,而且很脏,怎麽也弄不干净,这是怎麽回事啊?而且如果很长时间不用将它放在一旁的话,上面就会渗出一些像油
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/17 19:26:28
![笔上的橡胶套发生了什麽反应?现在很多笔上都有橡胶套,用久了它的颜色就会变深,而且很脏,怎麽也弄不干净,这是怎麽回事啊?而且如果很长时间不用将它放在一旁的话,上面就会渗出一些像油](/uploads/image/z/12182918-14-8.jpg?t=%E7%AC%94%E4%B8%8A%E7%9A%84%E6%A9%A1%E8%83%B6%E5%A5%97%E5%8F%91%E7%94%9F%E4%BA%86%E4%BB%80%E9%BA%BD%E5%8F%8D%E5%BA%94%3F%E7%8E%B0%E5%9C%A8%E5%BE%88%E5%A4%9A%E7%AC%94%E4%B8%8A%E9%83%BD%E6%9C%89%E6%A9%A1%E8%83%B6%E5%A5%97%2C%E7%94%A8%E4%B9%85%E4%BA%86%E5%AE%83%E7%9A%84%E9%A2%9C%E8%89%B2%E5%B0%B1%E4%BC%9A%E5%8F%98%E6%B7%B1%2C%E8%80%8C%E4%B8%94%E5%BE%88%E8%84%8F%2C%E6%80%8E%E9%BA%BD%E4%B9%9F%E5%BC%84%E4%B8%8D%E5%B9%B2%E5%87%80%2C%E8%BF%99%E6%98%AF%E6%80%8E%E9%BA%BD%E5%9B%9E%E4%BA%8B%E5%95%8A%3F%E8%80%8C%E4%B8%94%E5%A6%82%E6%9E%9C%E5%BE%88%E9%95%BF%E6%97%B6%E9%97%B4%E4%B8%8D%E7%94%A8%E5%B0%86%E5%AE%83%E6%94%BE%E5%9C%A8%E4%B8%80%E6%97%81%E7%9A%84%E8%AF%9D%2C%E4%B8%8A%E9%9D%A2%E5%B0%B1%E4%BC%9A%E6%B8%97%E5%87%BA%E4%B8%80%E4%BA%9B%E5%83%8F%E6%B2%B9)
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