分块确认uba: UBA = Union of Burma Airways ...acknowledgement: n. 1.承认;自认,供认。 2.感谢;谢意。 3.收条 ...unblocking-acknowledgement signal uba: 解锁证实信号unblocking acknowledgement: 封锁消除证实信号; 开启证实信号unblocking acknowledgement signal: 解除阻塞证实信号下载手机词典可随时随地查词查翻译