one-level storage单级: single stage; single level; ...存储器: accumulator; computer memory ...单级存储机: single level machine; single-level machine次级存储器: secondary storage多级存储器: multilevel storage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:单级存储器,即可在微信中查询翻译