backplane of abis interface unit bbiu abis接口: joggle; nozzle; mouthpiece; ...单元: unit; unit element; cell; lo ...背板: rear panel; back veneer收发信单元背板: transceiver backplane trb光接口单元: ufiu umsc fiber interface unit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:接口单元背板，即可在微信中查询翻译
