(subclass Amplifier ElectricalCircuit) | engineering.kif 990-990 | Amplifier e' uma sub-classe de ElectricalCircuit |
(subclass InvertingAmplifier Amplifier) | engineering.kif 1000-1000 | InvertingAmplifier e' uma sub-classe de Amplifier |
(subclass NoninvertingAmplifier Amplifier) | engineering.kif 1005-1005 | NoninvertingAmplifier e' uma sub-classe de Amplifier |