天气预报 > 其他 > 天平称完物体后要立刻归零吗
天平称完物体后要立刻归零吗
更新时间: 2020-09-23 00:00:00  

天平称完物体后需要立即归零。实验室里天平的正确使用方法要求天平使用完后必须归零。若不归零,那么会影响下一次实验时的称量,加过砝码,移动标尺时便会发现标尺不在零刻度,便要重新进行称量。

关键词: 天平 物体 立刻

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