sdm space division multiplexing空间: space; enclosure; room; blan ...分割: cut apart; break up多路: multichannel; multipath复用: multiplexing; multiplex空: leave empty or blank; empty; ...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:空间分割多路复用,空分多路,即可在微信中查询翻译