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我们在教学实践中,为了开发学生智力,提高运算能力,摸索出一种化学计算法——观察法。所谓观察法,就是不用列比例和方程的办
In our teaching practice, in order to develop students’ intelligence and improve their computational capabilities, we have developed a chemical method called observation. The so-called observation method is to do without column ratios and equations.