commutator type generator
servo type function generator
AC commutator type exciter
alternating current commutator type exciter
commutator generator
换向器式发电机
整流子式发电机
换向器发电机
整流子发电机
commutator type analog digital converter
commutator type analog-digital converter
commutator type frequency converter
commutator type watthour meter
double commutator generator
double commutator type machine
synchronous commutator type rectifier
a type function of zero order
auxiliary equation of hyperbolic function type
below bearing type generator