conductivity       
noun [ U ] uk/ˌkɒn.dʌkˈtɪv.ə.ti/ us/ˌkɑːn.dʌkˈtɪv.ə.t̬i/
 导电性;传热性
the property of allowing heat or electricity to go through something, or the degree to which a substance allows this this
  a high level of conductivity 高水平的导电性 
 electrical/thermal conductivity 电/热传导性 
 See: conductive
 - More examples
- Aluminium has good heat conductivity.
- The change in electrical conductivity is measured at suitable time intervals.
- It has a very low thermal conductivity, so it retains heat well.