disk oriented system导向: guide; steering; guiding系统: system导向系统: guidance system车内导向系统: car navigation; in-vehicle navigation system磁鼓导向系统: drum oriented system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:磁碟导向系统，即可在微信中查询翻译
