hard self excitationhard self-excitationhardness self-excitation硬: hard; stiff; tough自励: self-excitation; autoexcitat ...自励: self-excitation; autoexcitation◇自励电动机 self-excited motor; 自励发电机 self-exciter硬自激: hard self excitation硬自激振荡: hard self-excited oscillation下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:硬自励，即可在微信中查询翻译
