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我们常用的洗衣粉袋上都标有20型、25型、30型的字样。这些字样代表的是什么意思呢?为了“对症下药”,提高使用效果,现简介如下。
Our commonly used washing powder bags are marked with 20 type, 25 type, 30 type of words. These words represent what is the meaning? In order to “remedy” and improve the use of results, are summarized below.