单词	唇斗前缘
释义	同戽斗唇口--唇斗前缘
随便看	commutation point commutation relation commutation--relation commutation relations commutation repetitive transient commutation rule commutation rules commutations commutation switch commutation table commutation test commutation ticket commutation tickets commutation turnoff commutation voltage commutation winding commutation zone commutative commutative algebra commutative banach algebra commutative cochain commutative contract commutative diagram commutative element of group commutative group