paper inspector光电扫描: optoelectronic scanning选: select; choose; pick纸: paper器: implement; utensil; ware光电扫描计: photoelectric scanning machine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:光电扫描选纸器,即可在微信中查询翻译