By using the electronbalance, the weight of the mouse, spleen , thymus were measured, and the spleen coefficient and thymus coefficient were calculated.
运用电子秤对小鼠的体重、脾脏和胸腺重量进行了测量，并分别计算脾脏系数和胸腺系数；
2
It showed that precision of volume was improved hundredfold by electronbalance method and thus the accuracy and linearity of the work curve was improved greatly.
By use of magnetic balance which is general physical experiment instrument, a simple and new method of measuring the charge-mass ratio of electron mass developed.