current reversercurrent reversing keycurrent-reversing key电流: electric current换向: changing-over; change; jibe; ...开关: Q-switching场换向开关: field resistor换向开关: change over switch; changeover switch; commutation switch; commutator switch; direction control switch; on-off switch; reverse switching; reverser; reversing plug; reversing switch; reverting key; transfer switch下载手机词典可随时随地查词查翻译
