coefficient of mutual induction

例句：

1. 1. The coefficient of mutual induction between the two coils is 0.5.
   两个线圈之间的互感系数为0.5。
2. 2. The coefficient of mutual induction can be used to calculate the magnetic field strength.
   互感系数可以用来计算磁场强度。
3. 3. The coefficient of mutual induction is a measure of how much energy is transferred between two coils.
   互感系数是衡量两个线圈之间能量传递程度的指标。