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在教学鄂教版五年级下册《科学》第十二课“水力发电站”时,为了让学生弄清楚水力发电的方法和原理,需要学生做一项研究“影响小水轮转动快慢因素”
In order to let students figure out the methods and principles of hydroelectric power when teaching the second grade of Science Fifth Volume “Science” Twelfth Class “Hydroelectric Power Station ”, we need students to do a research “affect the rotation of small waterwheel Speed factor ”