【摘要】 为了改进实验教学，兹介绍一种在弦振动实验装置基础上加以改进，用来测定液体密度的实验方法。该方法所需附件易制易配，测量结果较准确，可以拓宽学生的知识面，作为选修或补充实验是有益的。更多还原

【Abstract】 In order to improve the experiment in string vibration,this paper introduces a method to measure the den sity of fluid with an improved apparatus,the pa rts of which can be easily made or obtained. The result of the measurement is more accurate and the students’ range of knowledge can be broadened.更多还原