NASA has awarded contracts to 13 companies to provide advanced propulsion and communications system technologies as part of ongoing long-term aerospace research activities at the agency’s Glenn Research Center in Cleveland.
请接住——来自ZJUT的“泼天馥桂”（文末送福利）
NASA has awarded contracts to 13 companies to provide advanced propulsion and communications system technologies as part of ongoing long-term aerospace research activities at the agency’s Glenn Research Center in Cleveland.
