backup spacecraft造句

例句与造句

1. The satellites belong to Russia's GLONASS system, which now comprises 18 operational and one backup spacecraft.
2. The backup spacecraft for the Soyuz 15 mission was placed in storage and later flown as Soyuz 20 despite being past its intended shelf life.
3. By the time of Skynet 5B's launch, a decision had been made to launch the backup spacecraft, Skynet 5C, as an on-orbit spare; this was launched in 2008.
4. Even though mission planners stayed sufficiently under budget to divert some funding for constructing a backup spacecraft, the budget did not permit both to be launched at the same time.
5. The-by now heavily modified-spacecraft # 15A was delivered to Cape Canaveral on 16 November 1962, renumbered # 15B in January 1963, and prepared for use as a backup spacecraft for MA-9; by this stage, NASA was noncomittal about whether or not a fifth orbital flight would be flown.
6. It's difficult to find backup spacecraft in a sentence. 用backup spacecraft造句挺难的