例文
- The newer 11A511U core had been introduced in 1973, but the existing stock of 11A57s took another three years to use up.
- "' Soyuz TM-29 "'was a Russian manned spacecraft launched from the Baikonur Cosmodrome aboard a Soyuz 11A511U rocket.
- The uprated 11A511U core was introduced to the R-7 family in 1973, yielding the carrier rocket variant named Soyuz-U, although adoption across the board was not complete until 1977 when the existing stock of 11A511-derived boosters was used up.