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摩擦力是力学中三种常见力之一,无论是初中,还是高中都要对它进行学习和讨论.如何把“大纲”的精神贯穿到具体教学当中,这是我们每个老师的每一节课都应该研究的问题.由于摩擦现象和摩擦作用的复
Friction is one of the three common forces in mechanics. Both junior high school and high school have to learn and discuss it. How to put the spirit of the “Outline” into specific teaching, which is every teacher’s Questions that should be studied in one lesson. Complex due to friction and friction