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jangjun packs (2023-10-20 18:11:21)
刻度尺的正确使用方法一看:看量程、看分度值、看零刻度线的位置；二放:刻度尺的零刻度线（或某一整数刻度线）对准被测物体的一端，且要紧贴被测物体；三读:读数时视线要正对刻度线，并与尺面刻度垂直，且要估测到分度值的下一位；四记:记录测量结果时要有准确值、估读值和单位。游券 F5※ F6 F7F891011F12％＆＊（）567890 TY U I O P
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