plural of back-to-back s
back-to-back circuit
[电] 背对背电路
back-to-back connection
[计] 背对背连接
back-to-back counter
[计] 加倍计数器
back-to-back letter of credit
[经] 背对背信用证, 对开信用证
back-to-back loan
[经] 对销贷款
back-to-back repeater
[电] 背对背转发器
back-to-back sawtooth wave
[电] 背对背锯齿波
back-to-back test
[计] 背对背试验
back-to-backs
(back-to-back 的复数) a. 紧接的, 背靠着背的