U.S. Aerospace.
the crew member of a space shuttle who is assigned primary responsibility for carrying out operations related to the payload of the shuttle.
[ 1975-80 ]
U.S. Aerospace.
the crew member of a space shuttle who is assigned primary responsibility for carrying out operations related to the payload of the shuttle.
[ 1975-80 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012