词汇	backbone up plate
释义	backbone up plate n.垫片
随便看	commutator vee V ring commutator voltage commutator v ring commutator V-ring commutator v ring insulation commutator V-ring insulation commutator wear commutator welding machine commute commute a death sentence commute a sentence commuter car commuter category airplanes commute between commute between home and office commute circuit commute comfort for hardship commuted commuted annual allowance gratuity commuted band-pass filter commuted filter module commuted gratuity commuted indenture terran marine corp commuted pension gratuity commuted ration allowance