- osu optical subscriber unit
- 光: light; ray
- 用户: user; subscriber; consumer; ...
- 单元: unit; unit element; cell; lo ...
- 单用户单元: single subscriber unit su; ssu single subscriber unit
- 多用户单元: msu multiple subscriber unit; msu:multi-subscriber unit
关注微信公众号：chachacidian，回复:光用户单元，即可在微信中查询翻译
