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理论与实践相结合,这是辩证唯物主义的一条普遍真理,学习物理要与实践相结合,物理计算也要注意它与实践的结合,请看下面几例与实践有关的例子. 例1 现在需要直径1mm的铁丝200m,
The combination of theory and practice is a universal truth of dialectical materialism. Learning physics must be combined with practice. The physics calculations should also pay attention to the combination of practice and practice. Take a look at the following examples of practice-related examples. Example 1 Now needs Diameter of 1mm wire 200m,