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装有同步开关的牛顿第二定律演示器,见图1,比现有的高级中学课本物理上册第89页图3-4研究牛顿第二定律的实验装置作了比较大的改进.
The Newton second law demonstrator equipped with a synchronous switch, see Fig. 1, is a much larger improvement than the existing experimental apparatus for the study of Newton’s second law.