发布时间:2025-01-21 18:04:41
将字反面空的地方用发泡剂填满
填 平,待干后用快干硅胶打上贴到墙上,用不脱胶的胶带固定好,待两天后将胶带揭去再将字的周边小心的打上硅胶就可以了。
常用的液化石油气用______的方法使它成为液体贮存在钢瓶里的
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