324 / | HD | ELECTRICITY: MEASURING AND TESTING |
600 | DF | IMPEDANCE, ADMITTANCE OR OTHER QUANTITIES REPRESENTATIVE OF ELECTRICAL STIMULUS/RESPONSE RELATIONSHIPS {8} |
629 | DF | .~ Distributive type parameters {6} |
633 | DF | .~.~ Using resonant frequency {3} |
636 | .~.~.~ With a resonant cavity |