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天平是一种比较精密的测量仪器,它的适用范围也有限制,不像刻度尺那么普遍.平时,同学们很少接触这种工具.另外,天平的使用也有很高的要求,否则就达不到精确测量的目的.那么,我们怎样方便快速地掌握天平的使用方法,准确快捷地处理使用当中出现的一些特殊情况呢?口诀记忆方便快捷.一、审观情况下,托盘天平的使用口诀: 天平使用分三步:一调二测三读数;调节时,要放平,游码左端对准零, 调节螺母使平衡;测量时,要记清,物左码右分得明;(调节)砝码要用镊子夹,
The balance is a relatively precise measurement instrument, and its scope of application is also limited. It is not as common as the scale. Usually, students rarely touch this tool. In addition, the use of the balance also has high requirements, otherwise it will not be reached. The purpose of accurate measurement. So, how can we quickly and easily grasp the use of the balance, accurately and quickly deal with the use of some of the special cases it? Memory is convenient and quick. First, under review conditions, the use of tray balances: The balance is divided into three steps: one for the second reading and the other for the three readings; for adjustment, the level should be leveled, the left end of the tour code should be aligned with zero, and the adjustment nut should be balanced; when measuring, it must be clearly recorded and the object left code should be clearly distinguished; (adjustment) Weights use clips,