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天平是测量物体质量的工具,实验室通常有托盘天平和物理天平两种.学生实验时,常用的是托盘天平.熟练使用托盘天平是对学生的基本要求.那么,怎样调节和使用托盘天平呢?
The balance is a tool for measuring the quality of objects. The laboratory usually has two kinds of balances: a tray balance and a physical balance. When students are experimenting, they often use tray balances. Skilled use of tray balances is a basic requirement for students. Then, how to adjust and use a tray scale? ?