例句與造句

1. The first " Guidance Test Vehicle " ( GTV ), essentially the service prototypes, started firing in June 1963.
2. :In relation to other aerodynamic missile programs at the Cape, the IM-99 Bomarc continued to move ahead slowly : the first Bomarc launch took place on 10 September 1952, however by the middle of 1956, only eight propulsion test vehicles, nine ramjet test vehicles and five guidance test vehicles had been launched.
3. It's difficult to find guidance test vehicle in a sentence. 用guidance test vehicle造句挺難的