characteristic equation характеристичне рівняння 3 621.3 1 DC voltage converter 1 UDC 539.3: 534.1: 629.7 1 a linear electric circuit 1 aerodynamic resonance 1 capacity 1 composite plate-strip 1 critical speed 1 flutter 1 inductance 1 interval polynomial 1 low-pass filter 1 oscillations 1 partial circuit 1 process of finite duration 1 pulse model 1 pulse width modulation 1 shunt active power filter 1 sliding mode 1 stability 1 system stability 1 time constant 1 transfer function 1 transverse shear 1 УДК 539.3: 534.1: 629.7 1 аеродинамічний резонанс 1 емкость 1 индуктивность 1