system number assignment系统: system号码: number分配: distribution; allocation; as ...子系统号码: ssn subsystem number; subsystem number子系统号,子系统号码: subsystem number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:系统号码分配,即可在微信中查询翻译