shunned character number
accessible ordinal number
永磁无刷直流电机
永磁无刷直流电动机
无刷直流电动机
无刷直流电机
无刷直流电动机(BLDCM)
可达序数
constructive ordinal number
expert preferential ordinal number
ordinal number of element
ordinal number of stratum
ordinal number of the second class
transfinite ordinal number
transfinite ordinal number of first class
transfinite ordinal number of second class
character deletion character