electromechanicaal release mechanism电动机: electric motor; motor械: tool; instrument投弹: drop a bomb throw a hand gre ...器: implement; utensil; ware电动投弹器: electrical release mechanism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:电动机械投弹器，即可在微信中查询翻译
