查看完整版本: ITUR F.444-3

pps3000 2006-11-17 17:48

ITUR F.444-3

07-1982
Preferred characteristics for multi-line switching arrangements of analogue radio-relay systems
Note - Suppressed on 06/06/03 (RA-03)
页: [1]
查看完整版本: ITUR F.444-3