练习一填空
2.The power rating is ___ maximum power the resistor can safely dissipate
without too great ___ rise in temperature.
3.This is ___ rms voltmeter.
4.___ successful design of the equipment requires ___ detailed knowledge
of the performance specifications.
5.In ___ Bohr model of the hydrogen atom,___ single electron revolves around ___
single proton in a circle of radius R.
6.