例文
- A " Two Row Angular Contact Ball " bearing that had been " procured as a spare for the Lincoln Labs CCM-Mark I Radar was installed in the AN / FPS-35 at Benton " and failed at 25, 000 hours . " In 1963 the search radar was complemented by Avco AN / FPS-26A and an GE AN / FPS-6 " to perform SAGE height finding requests.