“mission specialist”簡單造句，mission specialist造句子

1、After being selected by NASA in 1994, he qualified as a mission specialist within one year.

3、Part of the space station and the blue and white Earth are among the objects seen in his visor. Fellow spacewalker Steve Bowen, mission specialist, is out of frame.

2、William Shepherd in 1992. Cassidy is a mission specialist and a part of the STS-127 crew that will work on upgrading the International Space Station (ISS).