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初中物理基本概念概要一、量測⒈長度L:主單位:米;量測工具:刻度尺;量測時要估讀到最小刻度的下一位;光年的組織是長度單位.⒉時間t:主單位:秒;量測工具:鐘錶;實驗室中用停錶.1時=3600秒,1秒=1000毫秒.⒊質量…
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