词汇	switch-group
释义	switch-group 组合开关
随便看	double-nozzle spray gun double n/p ratio double nuagnetic flux transformer double nuclear magnetic resonance double nuclear resonance magnetometer Double-null Asymptotic Additivity double null diverter double nullisomic double number double numbering service double-numbering service double numeral double-numeral-classifier construction double numeration double nursing double nut double nut bolt double-nut bolt doublenuts double nuts double nuts anti-loosening double nylon brush roller doubleo double o double-O