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趣味化学小组的张良同学,在天平两端秤盘里各放两只质量相等的烧杯,再在两只烧杯中分别倒入等质量的相同溶质质量分数的稀盐酸,使天平
Student Zhang Liang of the Fun Chemistry Group placed two equal-weight beakers in each end of the balance pan, and then poured the same mass of dilute hydrochloric acid of the same solute mass into the two beakers to make the balance.